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Finding the Fourth Proportional to 615,401.20, 923,101.80 and 607,106.80

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Solution

The fourth proportional to 615,401.20, 923,101.80 and 607,106.80 is: 910,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,401.20 : 923,101.80 = 607,106.80 : x
  2. Step 2: Convert to fraction form
    615,401.20/923,101.80 = 607,106.80/x
  3. Step 3: Cross multiply
    615,401.20x = 923,101.80 × 607,106.80
  4. Step 4: Simplify right side
    615,401.20x = 560,421,379,872.24
  5. Step 5: Solve for x
    x = 560,421,379,872.24/615,401.20
  6. Step 6: Final answer
    x = 910,660.20

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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.