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Finding the Fourth Proportional to 647,716.54, 972,416.74 and 498,061.93

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Solution

The fourth proportional to 647,716.54, 972,416.74 and 498,061.93 is: 747,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,716.54 : 972,416.74 = 498,061.93 : x
  2. Step 2: Convert to fraction form
    647,716.54/972,416.74 = 498,061.93/x
  3. Step 3: Cross multiply
    647,716.54x = 972,416.74 × 498,061.93
  4. Step 4: Simplify right side
    647,716.54x = 484,323,758,288.71
  5. Step 5: Solve for x
    x = 484,323,758,288.71/647,716.54
  6. Step 6: Final answer
    x = 747,740.30

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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.