Home / 838,415.25-1,157,304.65-498,876.21

Finding the Fourth Proportional to 838,415.25, 1,157,304.65 and 498,876.21

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Solution

The fourth proportional to 838,415.25, 1,157,304.65 and 498,876.21 is: 688,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,415.25 : 1,157,304.65 = 498,876.21 : x
  2. Step 2: Convert to fraction form
    838,415.25/1,157,304.65 = 498,876.21/x
  3. Step 3: Cross multiply
    838,415.25x = 1,157,304.65 × 498,876.21
  4. Step 4: Simplify right side
    838,415.25x = 577,351,755,113.00
  5. Step 5: Solve for x
    x = 577,351,755,113.00/838,415.25
  6. Step 6: Final answer
    x = 688,622.68

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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.