Home / 520,943.39-719,013.58-339,331.26

Finding the Fourth Proportional to 520,943.39, 719,013.58 and 339,331.26

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Solution

The fourth proportional to 520,943.39, 719,013.58 and 339,331.26 is: 468,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,943.39 : 719,013.58 = 339,331.26 : x
  2. Step 2: Convert to fraction form
    520,943.39/719,013.58 = 339,331.26/x
  3. Step 3: Cross multiply
    520,943.39x = 719,013.58 × 339,331.26
  4. Step 4: Simplify right side
    520,943.39x = 243,983,785,906.48
  5. Step 5: Solve for x
    x = 243,983,785,906.48/520,943.39
  6. Step 6: Final answer
    x = 468,349.90

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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.