Home / 816,981.60-1,226,470.80-462,242.40

Finding the Fourth Proportional to 816,981.60, 1,226,470.80 and 462,242.40

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Solution

The fourth proportional to 816,981.60, 1,226,470.80 and 462,242.40 is: 693,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,981.60 : 1,226,470.80 = 462,242.40 : x
  2. Step 2: Convert to fraction form
    816,981.60/1,226,470.80 = 462,242.40/x
  3. Step 3: Cross multiply
    816,981.60x = 1,226,470.80 × 462,242.40
  4. Step 4: Simplify right side
    816,981.60x = 566,926,806,121.92
  5. Step 5: Solve for x
    x = 566,926,806,121.92/816,981.60
  6. Step 6: Final answer
    x = 693,928.49

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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.