Home / 648,646.54-972,180.16-459,160.61

Finding the Fourth Proportional to 648,646.54, 972,180.16 and 459,160.61

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Solution

The fourth proportional to 648,646.54, 972,180.16 and 459,160.61 is: 688,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,646.54 : 972,180.16 = 459,160.61 : x
  2. Step 2: Convert to fraction form
    648,646.54/972,180.16 = 459,160.61/x
  3. Step 3: Cross multiply
    648,646.54x = 972,180.16 × 459,160.61
  4. Step 4: Simplify right side
    648,646.54x = 446,386,829,286.70
  5. Step 5: Solve for x
    x = 446,386,829,286.70/648,646.54
  6. Step 6: Final answer
    x = 688,181.93

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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.