Home / 687,399.60-1,029,025.80-604,455.60

Finding the Fourth Proportional to 687,399.60, 1,029,025.80 and 604,455.60

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Solution

The fourth proportional to 687,399.60, 1,029,025.80 and 604,455.60 is: 904,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,399.60 : 1,029,025.80 = 604,455.60 : x
  2. Step 2: Convert to fraction form
    687,399.60/1,029,025.80 = 604,455.60/x
  3. Step 3: Cross multiply
    687,399.60x = 1,029,025.80 × 604,455.60
  4. Step 4: Simplify right side
    687,399.60x = 622,000,407,354.48
  5. Step 5: Solve for x
    x = 622,000,407,354.48/687,399.60
  6. Step 6: Final answer
    x = 904,860.01

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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.