Home / 511,213.03-705,526.47-307,329.95

Finding the Fourth Proportional to 511,213.03, 705,526.47 and 307,329.95

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Solution

The fourth proportional to 511,213.03, 705,526.47 and 307,329.95 is: 424,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,213.03 : 705,526.47 = 307,329.95 : x
  2. Step 2: Convert to fraction form
    511,213.03/705,526.47 = 307,329.95/x
  3. Step 3: Cross multiply
    511,213.03x = 705,526.47 × 307,329.95
  4. Step 4: Simplify right side
    511,213.03x = 216,829,414,748.78
  5. Step 5: Solve for x
    x = 216,829,414,748.78/511,213.03
  6. Step 6: Final answer
    x = 424,146.89

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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.