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Finding the Fourth Proportional to 657,635.81, 906,716.59 and 502,779.01

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Solution

The fourth proportional to 657,635.81, 906,716.59 and 502,779.01 is: 693,207.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,635.81 : 906,716.59 = 502,779.01 : x
  2. Step 2: Convert to fraction form
    657,635.81/906,716.59 = 502,779.01/x
  3. Step 3: Cross multiply
    657,635.81x = 906,716.59 × 502,779.01
  4. Step 4: Simplify right side
    657,635.81x = 455,878,062,423.30
  5. Step 5: Solve for x
    x = 455,878,062,423.30/657,635.81
  6. Step 6: Final answer
    x = 693,207.48

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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.