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Finding the Fourth Proportional to 658,397.40, 987,596.10 and 607,075.80

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Solution

The fourth proportional to 658,397.40, 987,596.10 and 607,075.80 is: 910,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,397.40 : 987,596.10 = 607,075.80 : x
  2. Step 2: Convert to fraction form
    658,397.40/987,596.10 = 607,075.80/x
  3. Step 3: Cross multiply
    658,397.40x = 987,596.10 × 607,075.80
  4. Step 4: Simplify right side
    658,397.40x = 599,545,692,484.38
  5. Step 5: Solve for x
    x = 599,545,692,484.38/658,397.40
  6. Step 6: Final answer
    x = 910,613.70

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Double scale
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Similar ratio
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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.