Home / 915,185.76-1,371,962.16-465,655.20

Finding the Fourth Proportional to 915,185.76, 1,371,962.16 and 465,655.20

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Solution

The fourth proportional to 915,185.76, 1,371,962.16 and 465,655.20 is: 698,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,185.76 : 1,371,962.16 = 465,655.20 : x
  2. Step 2: Convert to fraction form
    915,185.76/1,371,962.16 = 465,655.20/x
  3. Step 3: Cross multiply
    915,185.76x = 1,371,962.16 × 465,655.20
  4. Step 4: Simplify right side
    915,185.76x = 638,861,314,007.23
  5. Step 5: Solve for x
    x = 638,861,314,007.23/915,185.76
  6. Step 6: Final answer
    x = 698,067.37

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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.