Home / 1,138,217.40-1,705,079.70-577,654.20

Finding the Fourth Proportional to 1,138,217.40, 1,705,079.70 and 577,654.20

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Solution

The fourth proportional to 1,138,217.40, 1,705,079.70 and 577,654.20 is: 865,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,217.40 : 1,705,079.70 = 577,654.20 : x
  2. Step 2: Convert to fraction form
    1,138,217.40/1,705,079.70 = 577,654.20/x
  3. Step 3: Cross multiply
    1,138,217.40x = 1,705,079.70 × 577,654.20
  4. Step 4: Simplify right side
    1,138,217.40x = 984,946,450,039.74
  5. Step 5: Solve for x
    x = 984,946,450,039.74/1,138,217.40
  6. Step 6: Final answer
    x = 865,341.23

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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.