Home / 878,983.28-1,318,526.40-339,242.48

Finding the Fourth Proportional to 878,983.28, 1,318,526.40 and 339,242.48

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Solution

The fourth proportional to 878,983.28, 1,318,526.40 and 339,242.48 is: 508,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,983.28 : 1,318,526.40 = 339,242.48 : x
  2. Step 2: Convert to fraction form
    878,983.28/1,318,526.40 = 339,242.48/x
  3. Step 3: Cross multiply
    878,983.28x = 1,318,526.40 × 339,242.48
  4. Step 4: Simplify right side
    878,983.28x = 447,300,165,881.47
  5. Step 5: Solve for x
    x = 447,300,165,881.47/878,983.28
  6. Step 6: Final answer
    x = 508,883.59

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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.