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Finding the Fourth Proportional to 942,809.40, 1,412,658.90 and 802,841.40

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Solution

The fourth proportional to 942,809.40, 1,412,658.90 and 802,841.40 is: 1,202,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,809.40 : 1,412,658.90 = 802,841.40 : x
  2. Step 2: Convert to fraction form
    942,809.40/1,412,658.90 = 802,841.40/x
  3. Step 3: Cross multiply
    942,809.40x = 1,412,658.90 × 802,841.40
  4. Step 4: Simplify right side
    942,809.40x = 1,134,141,048,998.46
  5. Step 5: Solve for x
    x = 1,134,141,048,998.46/942,809.40
  6. Step 6: Final answer
    x = 1,202,937.78

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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.