Home / 781,636.90-1,171,634.55-497,545.06

Finding the Fourth Proportional to 781,636.90, 1,171,634.55 and 497,545.06

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Solution

The fourth proportional to 781,636.90, 1,171,634.55 and 497,545.06 is: 745,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,636.90 : 1,171,634.55 = 497,545.06 : x
  2. Step 2: Convert to fraction form
    781,636.90/1,171,634.55 = 497,545.06/x
  3. Step 3: Cross multiply
    781,636.90x = 1,171,634.55 × 497,545.06
  4. Step 4: Simplify right side
    781,636.90x = 582,940,982,477.82
  5. Step 5: Solve for x
    x = 582,940,982,477.82/781,636.90
  6. Step 6: Final answer
    x = 745,795.12

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1.5x scale

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.