Home / 659,931.40-990,020.22-304,710.76

Finding the Fourth Proportional to 659,931.40, 990,020.22 and 304,710.76

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Solution

The fourth proportional to 659,931.40, 990,020.22 and 304,710.76 is: 457,122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,931.40 : 990,020.22 = 304,710.76 : x
  2. Step 2: Convert to fraction form
    659,931.40/990,020.22 = 304,710.76/x
  3. Step 3: Cross multiply
    659,931.40x = 990,020.22 × 304,710.76
  4. Step 4: Simplify right side
    659,931.40x = 301,669,813,651.57
  5. Step 5: Solve for x
    x = 301,669,813,651.57/659,931.40
  6. Step 6: Final answer
    x = 457,122.99

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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.