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Finding the Fourth Proportional to 909,792, 1,255,107.15 and 527,597.46

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Solution

The fourth proportional to 909,792, 1,255,107.15 and 527,597.46 is: 727,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,792 : 1,255,107.15 = 527,597.46 : x
  2. Step 2: Convert to fraction form
    909,792/1,255,107.15 = 527,597.46/x
  3. Step 3: Cross multiply
    909,792x = 1,255,107.15 × 527,597.46
  4. Step 4: Simplify right side
    909,792x = 662,191,344,367.84
  5. Step 5: Solve for x
    x = 662,191,344,367.84/909,792
  6. Step 6: Final answer
    x = 727,849.16

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1.5x scale

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.