Home / 990,070.80-1,366,063.50-560,350.92

Finding the Fourth Proportional to 990,070.80, 1,366,063.50 and 560,350.92

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Solution

The fourth proportional to 990,070.80, 1,366,063.50 and 560,350.92 is: 773,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,070.80 : 1,366,063.50 = 560,350.92 : x
  2. Step 2: Convert to fraction form
    990,070.80/1,366,063.50 = 560,350.92/x
  3. Step 3: Cross multiply
    990,070.80x = 1,366,063.50 × 560,350.92
  4. Step 4: Simplify right side
    990,070.80x = 765,474,939,003.42
  5. Step 5: Solve for x
    x = 765,474,939,003.42/990,070.80
  6. Step 6: Final answer
    x = 773,151.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.