Home / 1,000,356.40-1,500,534.60-917,687.80

Finding the Fourth Proportional to 1,000,356.40, 1,500,534.60 and 917,687.80

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Solution

The fourth proportional to 1,000,356.40, 1,500,534.60 and 917,687.80 is: 1,376,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,356.40 : 1,500,534.60 = 917,687.80 : x
  2. Step 2: Convert to fraction form
    1,000,356.40/1,500,534.60 = 917,687.80/x
  3. Step 3: Cross multiply
    1,000,356.40x = 1,500,534.60 × 917,687.80
  4. Step 4: Simplify right side
    1,000,356.40x = 1,377,022,295,897.88
  5. Step 5: Solve for x
    x = 1,377,022,295,897.88/1,000,356.40
  6. Step 6: Final answer
    x = 1,376,531.70

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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.