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Finding the Fourth Proportional to 438,673.48, 658,272.72 and 402,981.64

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Solution

The fourth proportional to 438,673.48, 658,272.72 and 402,981.64 is: 604,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,673.48 : 658,272.72 = 402,981.64 : x
  2. Step 2: Convert to fraction form
    438,673.48/658,272.72 = 402,981.64/x
  3. Step 3: Cross multiply
    438,673.48x = 658,272.72 × 402,981.64
  4. Step 4: Simplify right side
    438,673.48x = 265,271,820,272.86
  5. Step 5: Solve for x
    x = 265,271,820,272.86/438,673.48
  6. Step 6: Final answer
    x = 604,713.60

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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.