Home / 520,943.33-719,013.49-339,331.20

Finding the Fourth Proportional to 520,943.33, 719,013.49 and 339,331.20

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Solution

The fourth proportional to 520,943.33, 719,013.49 and 339,331.20 is: 468,349.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,943.33 : 719,013.49 = 339,331.20 : x
  2. Step 2: Convert to fraction form
    520,943.33/719,013.49 = 339,331.20/x
  3. Step 3: Cross multiply
    520,943.33x = 719,013.49 × 339,331.20
  4. Step 4: Simplify right side
    520,943.33x = 243,983,710,377.89
  5. Step 5: Solve for x
    x = 243,983,710,377.89/520,943.33
  6. Step 6: Final answer
    x = 468,349.82

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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.