Home / 1,577,102.50-2,176,401.45-861,710.50

Finding the Fourth Proportional to 1,577,102.50, 2,176,401.45 and 861,710.50

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Solution

The fourth proportional to 1,577,102.50, 2,176,401.45 and 861,710.50 is: 1,189,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577,102.50 : 2,176,401.45 = 861,710.50 : x
  2. Step 2: Convert to fraction form
    1,577,102.50/2,176,401.45 = 861,710.50/x
  3. Step 3: Cross multiply
    1,577,102.50x = 2,176,401.45 × 861,710.50
  4. Step 4: Simplify right side
    1,577,102.50x = 1,875,427,981,680.23
  5. Step 5: Solve for x
    x = 1,875,427,981,680.23/1,577,102.50
  6. Step 6: Final answer
    x = 1,189,160.49

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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.