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Finding the Fourth Proportional to 487,363.80, 731,045.70 and 353,616.60

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Solution

The fourth proportional to 487,363.80, 731,045.70 and 353,616.60 is: 530,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,363.80 : 731,045.70 = 353,616.60 : x
  2. Step 2: Convert to fraction form
    487,363.80/731,045.70 = 353,616.60/x
  3. Step 3: Cross multiply
    487,363.80x = 731,045.70 × 353,616.60
  4. Step 4: Simplify right side
    487,363.80x = 258,509,894,878.62
  5. Step 5: Solve for x
    x = 258,509,894,878.62/487,363.80
  6. Step 6: Final answer
    x = 530,424.90

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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.