Home / 990,939.02-1,486,439.36-471,500.42

Finding the Fourth Proportional to 990,939.02, 1,486,439.36 and 471,500.42

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Solution

The fourth proportional to 990,939.02, 1,486,439.36 and 471,500.42 is: 707,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,939.02 : 1,486,439.36 = 471,500.42 : x
  2. Step 2: Convert to fraction form
    990,939.02/1,486,439.36 = 471,500.42/x
  3. Step 3: Cross multiply
    990,939.02x = 1,486,439.36 × 471,500.42
  4. Step 4: Simplify right side
    990,939.02x = 700,856,772,754.83
  5. Step 5: Solve for x
    x = 700,856,772,754.83/990,939.02
  6. Step 6: Final answer
    x = 707,265.29

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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.