Home / 912,257.59-1,258,912.33-509,849.59

Finding the Fourth Proportional to 912,257.59, 1,258,912.33 and 509,849.59

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Solution

The fourth proportional to 912,257.59, 1,258,912.33 and 509,849.59 is: 703,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,257.59 : 1,258,912.33 = 509,849.59 : x
  2. Step 2: Convert to fraction form
    912,257.59/1,258,912.33 = 509,849.59/x
  3. Step 3: Cross multiply
    912,257.59x = 1,258,912.33 × 509,849.59
  4. Step 4: Simplify right side
    912,257.59x = 641,855,935,296.45
  5. Step 5: Solve for x
    x = 641,855,935,296.45/912,257.59
  6. Step 6: Final answer
    x = 703,590.68

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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.