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Finding the Fourth Proportional to 658,001.90, 987,002.85 and 303,707.90

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Solution

The fourth proportional to 658,001.90, 987,002.85 and 303,707.90 is: 455,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,001.90 : 987,002.85 = 303,707.90 : x
  2. Step 2: Convert to fraction form
    658,001.90/987,002.85 = 303,707.90/x
  3. Step 3: Cross multiply
    658,001.90x = 987,002.85 × 303,707.90
  4. Step 4: Simplify right side
    658,001.90x = 299,760,562,867.52
  5. Step 5: Solve for x
    x = 299,760,562,867.52/658,001.90
  6. Step 6: Final answer
    x = 455,561.85

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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.