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Finding the Fourth Proportional to 712,726.80, 982,774.80 and 454,194.24

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Solution

The fourth proportional to 712,726.80, 982,774.80 and 454,194.24 is: 626,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,726.80 : 982,774.80 = 454,194.24 : x
  2. Step 2: Convert to fraction form
    712,726.80/982,774.80 = 454,194.24/x
  3. Step 3: Cross multiply
    712,726.80x = 982,774.80 × 454,194.24
  4. Step 4: Simplify right side
    712,726.80x = 446,370,653,377.15
  5. Step 5: Solve for x
    x = 446,370,653,377.15/712,726.80
  6. Step 6: Final answer
    x = 626,285.77

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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.