Home / 1,243,442.70-1,865,601.45-611,934.30

Finding the Fourth Proportional to 1,243,442.70, 1,865,601.45 and 611,934.30

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Solution

The fourth proportional to 1,243,442.70, 1,865,601.45 and 611,934.30 is: 918,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,442.70 : 1,865,601.45 = 611,934.30 : x
  2. Step 2: Convert to fraction form
    1,243,442.70/1,865,601.45 = 611,934.30/x
  3. Step 3: Cross multiply
    1,243,442.70x = 1,865,601.45 × 611,934.30
  4. Step 4: Simplify right side
    1,243,442.70x = 1,141,625,517,384.74
  5. Step 5: Solve for x
    x = 1,141,625,517,384.74/1,243,442.70
  6. Step 6: Final answer
    x = 918,116.71

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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.