Home / 1,026,009.60-1,539,014.40-316,255.20

Finding the Fourth Proportional to 1,026,009.60, 1,539,014.40 and 316,255.20

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Solution

The fourth proportional to 1,026,009.60, 1,539,014.40 and 316,255.20 is: 474,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,009.60 : 1,539,014.40 = 316,255.20 : x
  2. Step 2: Convert to fraction form
    1,026,009.60/1,539,014.40 = 316,255.20/x
  3. Step 3: Cross multiply
    1,026,009.60x = 1,539,014.40 × 316,255.20
  4. Step 4: Simplify right side
    1,026,009.60x = 486,721,306,874.88
  5. Step 5: Solve for x
    x = 486,721,306,874.88/1,026,009.60
  6. Step 6: Final answer
    x = 474,382.80

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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.