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Finding the Fourth Proportional to 935,006.80, 1,401,991.80 and 402,437.20

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Solution

The fourth proportional to 935,006.80, 1,401,991.80 and 402,437.20 is: 603,432.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,006.80 : 1,401,991.80 = 402,437.20 : x
  2. Step 2: Convert to fraction form
    935,006.80/1,401,991.80 = 402,437.20/x
  3. Step 3: Cross multiply
    935,006.80x = 1,401,991.80 × 402,437.20
  4. Step 4: Simplify right side
    935,006.80x = 564,213,654,414.96
  5. Step 5: Solve for x
    x = 564,213,654,414.96/935,006.80
  6. Step 6: Final answer
    x = 603,432.67

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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.