Home / 721,815.20-1,082,722.80-497,866.40

Finding the Fourth Proportional to 721,815.20, 1,082,722.80 and 497,866.40

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Solution

The fourth proportional to 721,815.20, 1,082,722.80 and 497,866.40 is: 746,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,815.20 : 1,082,722.80 = 497,866.40 : x
  2. Step 2: Convert to fraction form
    721,815.20/1,082,722.80 = 497,866.40/x
  3. Step 3: Cross multiply
    721,815.20x = 1,082,722.80 × 497,866.40
  4. Step 4: Simplify right side
    721,815.20x = 539,051,302,633.92
  5. Step 5: Solve for x
    x = 539,051,302,633.92/721,815.20
  6. Step 6: Final answer
    x = 746,799.60

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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.