Home / 413,030.20-618,623.70-339,302.20

Finding the Fourth Proportional to 413,030.20, 618,623.70 and 339,302.20

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Solution

The fourth proportional to 413,030.20, 618,623.70 and 339,302.20 is: 508,196.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,030.20 : 618,623.70 = 339,302.20 : x
  2. Step 2: Convert to fraction form
    413,030.20/618,623.70 = 339,302.20/x
  3. Step 3: Cross multiply
    413,030.20x = 618,623.70 × 339,302.20
  4. Step 4: Simplify right side
    413,030.20x = 209,900,382,382.14
  5. Step 5: Solve for x
    x = 209,900,382,382.14/413,030.20
  6. Step 6: Final answer
    x = 508,196.21

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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.