Home / 765,949.33-1,056,989.43-426,417.61

Finding the Fourth Proportional to 765,949.33, 1,056,989.43 and 426,417.61

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Solution

The fourth proportional to 765,949.33, 1,056,989.43 and 426,417.61 is: 588,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,949.33 : 1,056,989.43 = 426,417.61 : x
  2. Step 2: Convert to fraction form
    765,949.33/1,056,989.43 = 426,417.61/x
  3. Step 3: Cross multiply
    765,949.33x = 1,056,989.43 × 426,417.61
  4. Step 4: Simplify right side
    765,949.33x = 450,718,904,403.77
  5. Step 5: Solve for x
    x = 450,718,904,403.77/765,949.33
  6. Step 6: Final answer
    x = 588,444.81

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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.