Home / 990,897.08-1,486,739.46-317,082.20

Finding the Fourth Proportional to 990,897.08, 1,486,739.46 and 317,082.20

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Solution

The fourth proportional to 990,897.08, 1,486,739.46 and 317,082.20 is: 475,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,897.08 : 1,486,739.46 = 317,082.20 : x
  2. Step 2: Convert to fraction form
    990,897.08/1,486,739.46 = 317,082.20/x
  3. Step 3: Cross multiply
    990,897.08x = 1,486,739.46 × 317,082.20
  4. Step 4: Simplify right side
    990,897.08x = 471,418,618,803.61
  5. Step 5: Solve for x
    x = 471,418,618,803.61/990,897.08
  6. Step 6: Final answer
    x = 475,749.33

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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.