Home / 642,269.52-963,426.15-305,136.18

Finding the Fourth Proportional to 642,269.52, 963,426.15 and 305,136.18

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Solution

The fourth proportional to 642,269.52, 963,426.15 and 305,136.18 is: 457,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,269.52 : 963,426.15 = 305,136.18 : x
  2. Step 2: Convert to fraction form
    642,269.52/963,426.15 = 305,136.18/x
  3. Step 3: Cross multiply
    642,269.52x = 963,426.15 × 305,136.18
  4. Step 4: Simplify right side
    642,269.52x = 293,976,175,123.11
  5. Step 5: Solve for x
    x = 293,976,175,123.11/642,269.52
  6. Step 6: Final answer
    x = 457,714.66

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1.5x scale

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.