Home / 765,358.32-1,056,244.96-425,827.28

Finding the Fourth Proportional to 765,358.32, 1,056,244.96 and 425,827.28

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Solution

The fourth proportional to 765,358.32, 1,056,244.96 and 425,827.28 is: 587,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,358.32 : 1,056,244.96 = 425,827.28 : x
  2. Step 2: Convert to fraction form
    765,358.32/1,056,244.96 = 425,827.28/x
  3. Step 3: Cross multiply
    765,358.32x = 1,056,244.96 × 425,827.28
  4. Step 4: Simplify right side
    765,358.32x = 449,777,918,330.51
  5. Step 5: Solve for x
    x = 449,777,918,330.51/765,358.32
  6. Step 6: Final answer
    x = 587,669.73

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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.