Home / 878,275.98-1,316,397.42-403,965.90

Finding the Fourth Proportional to 878,275.98, 1,316,397.42 and 403,965.90

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Solution

The fourth proportional to 878,275.98, 1,316,397.42 and 403,965.90 is: 605,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,275.98 : 1,316,397.42 = 403,965.90 : x
  2. Step 2: Convert to fraction form
    878,275.98/1,316,397.42 = 403,965.90/x
  3. Step 3: Cross multiply
    878,275.98x = 1,316,397.42 × 403,965.90
  4. Step 4: Simplify right side
    878,275.98x = 531,779,668,527.98
  5. Step 5: Solve for x
    x = 531,779,668,527.98/878,275.98
  6. Step 6: Final answer
    x = 605,481.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.