Home / 816,951.78-1,223,328.15-500,449.14

Finding the Fourth Proportional to 816,951.78, 1,223,328.15 and 500,449.14

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Solution

The fourth proportional to 816,951.78, 1,223,328.15 and 500,449.14 is: 749,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,951.78 : 1,223,328.15 = 500,449.14 : x
  2. Step 2: Convert to fraction form
    816,951.78/1,223,328.15 = 500,449.14/x
  3. Step 3: Cross multiply
    816,951.78x = 1,223,328.15 × 500,449.14
  4. Step 4: Simplify right side
    816,951.78x = 612,213,520,605.29
  5. Step 5: Solve for x
    x = 612,213,520,605.29/816,951.78
  6. Step 6: Final answer
    x = 749,387.58

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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.