Home / 453,141.23-679,711.89-215,764.25

Finding the Fourth Proportional to 453,141.23, 679,711.89 and 215,764.25

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Solution

The fourth proportional to 453,141.23, 679,711.89 and 215,764.25 is: 323,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,141.23 : 679,711.89 = 215,764.25 : x
  2. Step 2: Convert to fraction form
    453,141.23/679,711.89 = 215,764.25/x
  3. Step 3: Cross multiply
    453,141.23x = 679,711.89 × 215,764.25
  4. Step 4: Simplify right side
    453,141.23x = 146,657,522,763.37
  5. Step 5: Solve for x
    x = 146,657,522,763.37/453,141.23
  6. Step 6: Final answer
    x = 323,646.39

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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.