Home / 765,239.04-1,055,744.64-478,650.24

Finding the Fourth Proportional to 765,239.04, 1,055,744.64 and 478,650.24

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Solution

The fourth proportional to 765,239.04, 1,055,744.64 and 478,650.24 is: 660,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,239.04 : 1,055,744.64 = 478,650.24 : x
  2. Step 2: Convert to fraction form
    765,239.04/1,055,744.64 = 478,650.24/x
  3. Step 3: Cross multiply
    765,239.04x = 1,055,744.64 × 478,650.24
  4. Step 4: Simplify right side
    765,239.04x = 505,332,425,314.71
  5. Step 5: Solve for x
    x = 505,332,425,314.71/765,239.04
  6. Step 6: Final answer
    x = 660,358.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.