Home / 1,255,282.18-1,732,282.41-711,520.78

Finding the Fourth Proportional to 1,255,282.18, 1,732,282.41 and 711,520.78

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Solution

The fourth proportional to 1,255,282.18, 1,732,282.41 and 711,520.78 is: 981,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,282.18 : 1,732,282.41 = 711,520.78 : x
  2. Step 2: Convert to fraction form
    1,255,282.18/1,732,282.41 = 711,520.78/x
  3. Step 3: Cross multiply
    1,255,282.18x = 1,732,282.41 × 711,520.78
  4. Step 4: Simplify right side
    1,255,282.18x = 1,232,554,931,543.48
  5. Step 5: Solve for x
    x = 1,232,554,931,543.48/1,255,282.18
  6. Step 6: Final answer
    x = 981,894.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.