Home / 816,139.60-1,224,209.40-496,805.20

Finding the Fourth Proportional to 816,139.60, 1,224,209.40 and 496,805.20

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Solution

The fourth proportional to 816,139.60, 1,224,209.40 and 496,805.20 is: 745,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,139.60 : 1,224,209.40 = 496,805.20 : x
  2. Step 2: Convert to fraction form
    816,139.60/1,224,209.40 = 496,805.20/x
  3. Step 3: Cross multiply
    816,139.60x = 1,224,209.40 × 496,805.20
  4. Step 4: Simplify right side
    816,139.60x = 608,193,595,808.88
  5. Step 5: Solve for x
    x = 608,193,595,808.88/816,139.60
  6. Step 6: Final answer
    x = 745,207.80

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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.