Home / 915,186.76-1,371,963.66-465,656.20

Finding the Fourth Proportional to 915,186.76, 1,371,963.66 and 465,656.20

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Solution

The fourth proportional to 915,186.76, 1,371,963.66 and 465,656.20 is: 698,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,186.76 : 1,371,963.66 = 465,656.20 : x
  2. Step 2: Convert to fraction form
    915,186.76/1,371,963.66 = 465,656.20/x
  3. Step 3: Cross multiply
    915,186.76x = 1,371,963.66 × 465,656.20
  4. Step 4: Simplify right side
    915,186.76x = 638,863,384,453.69
  5. Step 5: Solve for x
    x = 638,863,384,453.69/915,186.76
  6. Step 6: Final answer
    x = 698,068.87

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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.