Home / 904,096.80-1,357,700.40-639,712.80

Finding the Fourth Proportional to 904,096.80, 1,357,700.40 and 639,712.80

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Solution

The fourth proportional to 904,096.80, 1,357,700.40 and 639,712.80 is: 960,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,096.80 : 1,357,700.40 = 639,712.80 : x
  2. Step 2: Convert to fraction form
    904,096.80/1,357,700.40 = 639,712.80/x
  3. Step 3: Cross multiply
    904,096.80x = 1,357,700.40 × 639,712.80
  4. Step 4: Simplify right side
    904,096.80x = 868,538,324,445.12
  5. Step 5: Solve for x
    x = 868,538,324,445.12/904,096.80
  6. Step 6: Final answer
    x = 960,669.61

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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.