Home / 470,545.20-649,356.32-255,685.28

Finding the Fourth Proportional to 470,545.20, 649,356.32 and 255,685.28

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Solution

The fourth proportional to 470,545.20, 649,356.32 and 255,685.28 is: 352,847.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,545.20 : 649,356.32 = 255,685.28 : x
  2. Step 2: Convert to fraction form
    470,545.20/649,356.32 = 255,685.28/x
  3. Step 3: Cross multiply
    470,545.20x = 649,356.32 × 255,685.28
  4. Step 4: Simplify right side
    470,545.20x = 166,030,852,498.97
  5. Step 5: Solve for x
    x = 166,030,852,498.97/470,545.20
  6. Step 6: Final answer
    x = 352,847.83

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1.5x scale

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.