Home / 917,584-1,266,265.92-515,184.64

Finding the Fourth Proportional to 917,584, 1,266,265.92 and 515,184.64

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Solution

The fourth proportional to 917,584, 1,266,265.92 and 515,184.64 is: 710,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,584 : 1,266,265.92 = 515,184.64 : x
  2. Step 2: Convert to fraction form
    917,584/1,266,265.92 = 515,184.64/x
  3. Step 3: Cross multiply
    917,584x = 1,266,265.92 × 515,184.64
  4. Step 4: Simplify right side
    917,584x = 652,360,752,139.47
  5. Step 5: Solve for x
    x = 652,360,752,139.47/917,584
  6. Step 6: Final answer
    x = 710,954.80

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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.