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Finding the Fourth Proportional to 480,444.95, 720,658.32 and 143,486.57

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Solution

The fourth proportional to 480,444.95, 720,658.32 and 143,486.57 is: 215,227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,444.95 : 720,658.32 = 143,486.57 : x
  2. Step 2: Convert to fraction form
    480,444.95/720,658.32 = 143,486.57/x
  3. Step 3: Cross multiply
    480,444.95x = 720,658.32 × 143,486.57
  4. Step 4: Simplify right side
    480,444.95x = 103,404,791,742.33
  5. Step 5: Solve for x
    x = 103,404,791,742.33/480,444.95
  6. Step 6: Final answer
    x = 215,227.14

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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.