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Finding the Fourth Proportional to 482,386.99, 722,615.78 and 290,155.24

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Solution

The fourth proportional to 482,386.99, 722,615.78 and 290,155.24 is: 434,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,386.99 : 722,615.78 = 290,155.24 : x
  2. Step 2: Convert to fraction form
    482,386.99/722,615.78 = 290,155.24/x
  3. Step 3: Cross multiply
    482,386.99x = 722,615.78 × 290,155.24
  4. Step 4: Simplify right side
    482,386.99x = 209,670,756,956.39
  5. Step 5: Solve for x
    x = 209,670,756,956.39/482,386.99
  6. Step 6: Final answer
    x = 434,652.60

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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.