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Finding the Fourth Proportional to 907,600.70, 1,361,401.05 and 655,658.30

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Solution

The fourth proportional to 907,600.70, 1,361,401.05 and 655,658.30 is: 983,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,600.70 : 1,361,401.05 = 655,658.30 : x
  2. Step 2: Convert to fraction form
    907,600.70/1,361,401.05 = 655,658.30/x
  3. Step 3: Cross multiply
    907,600.70x = 1,361,401.05 × 655,658.30
  4. Step 4: Simplify right side
    907,600.70x = 892,613,898,061.22
  5. Step 5: Solve for x
    x = 892,613,898,061.22/907,600.70
  6. Step 6: Final answer
    x = 983,487.45

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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.