Home / 910,561.64-1,256,542.12-502,654.72

Finding the Fourth Proportional to 910,561.64, 1,256,542.12 and 502,654.72

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Solution

The fourth proportional to 910,561.64, 1,256,542.12 and 502,654.72 is: 693,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,561.64 : 1,256,542.12 = 502,654.72 : x
  2. Step 2: Convert to fraction form
    910,561.64/1,256,542.12 = 502,654.72/x
  3. Step 3: Cross multiply
    910,561.64x = 1,256,542.12 × 502,654.72
  4. Step 4: Simplify right side
    910,561.64x = 631,606,827,496.81
  5. Step 5: Solve for x
    x = 631,606,827,496.81/910,561.64
  6. Step 6: Final answer
    x = 693,645.33

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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.