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Finding the Fourth Proportional to 610,427.70, 915,422.85 and 310,808.70

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Solution

The fourth proportional to 610,427.70, 915,422.85 and 310,808.70 is: 466,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,427.70 : 915,422.85 = 310,808.70 : x
  2. Step 2: Convert to fraction form
    610,427.70/915,422.85 = 310,808.70/x
  3. Step 3: Cross multiply
    610,427.70x = 915,422.85 × 310,808.70
  4. Step 4: Simplify right side
    610,427.70x = 284,521,385,958.80
  5. Step 5: Solve for x
    x = 284,521,385,958.80/610,427.70
  6. Step 6: Final answer
    x = 466,101.70

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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.