Home / 711,192.70-1,064,715.45-690,456.70

Finding the Fourth Proportional to 711,192.70, 1,064,715.45 and 690,456.70

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Solution

The fourth proportional to 711,192.70, 1,064,715.45 and 690,456.70 is: 1,033,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,192.70 : 1,064,715.45 = 690,456.70 : x
  2. Step 2: Convert to fraction form
    711,192.70/1,064,715.45 = 690,456.70/x
  3. Step 3: Cross multiply
    711,192.70x = 1,064,715.45 × 690,456.70
  4. Step 4: Simplify right side
    711,192.70x = 735,139,916,046.02
  5. Step 5: Solve for x
    x = 735,139,916,046.02/711,192.70
  6. Step 6: Final answer
    x = 1,033,671.91

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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.