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Finding the Fourth Proportional to 508,440.96, 701,655.12 and 278,983.80

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Solution

The fourth proportional to 508,440.96, 701,655.12 and 278,983.80 is: 385,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,440.96 : 701,655.12 = 278,983.80 : x
  2. Step 2: Convert to fraction form
    508,440.96/701,655.12 = 278,983.80/x
  3. Step 3: Cross multiply
    508,440.96x = 701,655.12 × 278,983.80
  4. Step 4: Simplify right side
    508,440.96x = 195,750,411,667.06
  5. Step 5: Solve for x
    x = 195,750,411,667.06/508,440.96
  6. Step 6: Final answer
    x = 385,001.26

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1.5x scale

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.