Home / 778,889.90-1,168,248.45-217,981.10

Finding the Fourth Proportional to 778,889.90, 1,168,248.45 and 217,981.10

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Solution

The fourth proportional to 778,889.90, 1,168,248.45 and 217,981.10 is: 326,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,889.90 : 1,168,248.45 = 217,981.10 : x
  2. Step 2: Convert to fraction form
    778,889.90/1,168,248.45 = 217,981.10/x
  3. Step 3: Cross multiply
    778,889.90x = 1,168,248.45 × 217,981.10
  4. Step 4: Simplify right side
    778,889.90x = 254,656,082,204.30
  5. Step 5: Solve for x
    x = 254,656,082,204.30/778,889.90
  6. Step 6: Final answer
    x = 326,947.47

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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.