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Finding the Fourth Proportional to 440,477.70, 660,716.55 and 433,479.30

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Solution

The fourth proportional to 440,477.70, 660,716.55 and 433,479.30 is: 650,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,477.70 : 660,716.55 = 433,479.30 : x
  2. Step 2: Convert to fraction form
    440,477.70/660,716.55 = 433,479.30/x
  3. Step 3: Cross multiply
    440,477.70x = 660,716.55 × 433,479.30
  4. Step 4: Simplify right side
    440,477.70x = 286,406,947,592.42
  5. Step 5: Solve for x
    x = 286,406,947,592.42/440,477.70
  6. Step 6: Final answer
    x = 650,218.95

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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.