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Finding the Fourth Proportional to 479,588.68, 662,097.54 and 288,649

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Solution

The fourth proportional to 479,588.68, 662,097.54 and 288,649 is: 398,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,588.68 : 662,097.54 = 288,649 : x
  2. Step 2: Convert to fraction form
    479,588.68/662,097.54 = 288,649/x
  3. Step 3: Cross multiply
    479,588.68x = 662,097.54 × 288,649
  4. Step 4: Simplify right side
    479,588.68x = 191,113,792,823.46
  5. Step 5: Solve for x
    x = 191,113,792,823.46/479,588.68
  6. Step 6: Final answer
    x = 398,495.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.