Home / 816,545.60-1,224,856.80-255,598.40

Finding the Fourth Proportional to 816,545.60, 1,224,856.80 and 255,598.40

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Solution

The fourth proportional to 816,545.60, 1,224,856.80 and 255,598.40 is: 383,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,545.60 : 1,224,856.80 = 255,598.40 : x
  2. Step 2: Convert to fraction form
    816,545.60/1,224,856.80 = 255,598.40/x
  3. Step 3: Cross multiply
    816,545.60x = 1,224,856.80 × 255,598.40
  4. Step 4: Simplify right side
    816,545.60x = 313,071,438,309.12
  5. Step 5: Solve for x
    x = 313,071,438,309.12/816,545.60
  6. Step 6: Final answer
    x = 383,409.62

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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.