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Finding the Fourth Proportional to 440,121.60, 659,404.80 and 360,806.40

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Solution

The fourth proportional to 440,121.60, 659,404.80 and 360,806.40 is: 540,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,121.60 : 659,404.80 = 360,806.40 : x
  2. Step 2: Convert to fraction form
    440,121.60/659,404.80 = 360,806.40/x
  3. Step 3: Cross multiply
    440,121.60x = 659,404.80 × 360,806.40
  4. Step 4: Simplify right side
    440,121.60x = 237,917,472,030.72
  5. Step 5: Solve for x
    x = 237,917,472,030.72/440,121.60
  6. Step 6: Final answer
    x = 540,572.13

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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.