Home / 684,420.60-1,026,630.90-235,648.20

Finding the Fourth Proportional to 684,420.60, 1,026,630.90 and 235,648.20

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Solution

The fourth proportional to 684,420.60, 1,026,630.90 and 235,648.20 is: 353,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,420.60 : 1,026,630.90 = 235,648.20 : x
  2. Step 2: Convert to fraction form
    684,420.60/1,026,630.90 = 235,648.20/x
  3. Step 3: Cross multiply
    684,420.60x = 1,026,630.90 × 235,648.20
  4. Step 4: Simplify right side
    684,420.60x = 241,923,723,649.38
  5. Step 5: Solve for x
    x = 241,923,723,649.38/684,420.60
  6. Step 6: Final answer
    x = 353,472.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.