Home / 817,545.40-1,128,234.54-495,187

Finding the Fourth Proportional to 817,545.40, 1,128,234.54 and 495,187

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Solution

The fourth proportional to 817,545.40, 1,128,234.54 and 495,187 is: 683,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,545.40 : 1,128,234.54 = 495,187 : x
  2. Step 2: Convert to fraction form
    817,545.40/1,128,234.54 = 495,187/x
  3. Step 3: Cross multiply
    817,545.40x = 1,128,234.54 × 495,187
  4. Step 4: Simplify right side
    817,545.40x = 558,687,077,158.98
  5. Step 5: Solve for x
    x = 558,687,077,158.98/817,545.40
  6. Step 6: Final answer
    x = 683,371.32

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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.