Home / 684,005.60-1,026,008.40-432,063.20

Finding the Fourth Proportional to 684,005.60, 1,026,008.40 and 432,063.20

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Solution

The fourth proportional to 684,005.60, 1,026,008.40 and 432,063.20 is: 648,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,005.60 : 1,026,008.40 = 432,063.20 : x
  2. Step 2: Convert to fraction form
    684,005.60/1,026,008.40 = 432,063.20/x
  3. Step 3: Cross multiply
    684,005.60x = 1,026,008.40 × 432,063.20
  4. Step 4: Simplify right side
    684,005.60x = 443,300,472,530.88
  5. Step 5: Solve for x
    x = 443,300,472,530.88/684,005.60
  6. Step 6: Final answer
    x = 648,094.80

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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.