Home / 917,687.70-1,376,531.55-386,246.70

Finding the Fourth Proportional to 917,687.70, 1,376,531.55 and 386,246.70

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Solution

The fourth proportional to 917,687.70, 1,376,531.55 and 386,246.70 is: 579,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,687.70 : 1,376,531.55 = 386,246.70 : x
  2. Step 2: Convert to fraction form
    917,687.70/1,376,531.55 = 386,246.70/x
  3. Step 3: Cross multiply
    917,687.70x = 1,376,531.55 × 386,246.70
  4. Step 4: Simplify right side
    917,687.70x = 531,680,768,633.39
  5. Step 5: Solve for x
    x = 531,680,768,633.39/917,687.70
  6. Step 6: Final answer
    x = 579,370.05

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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.