Home / 769,095.19-1,154,366.52-390,287.89

Finding the Fourth Proportional to 769,095.19, 1,154,366.52 and 390,287.89

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Solution

The fourth proportional to 769,095.19, 1,154,366.52 and 390,287.89 is: 585,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,095.19 : 1,154,366.52 = 390,287.89 : x
  2. Step 2: Convert to fraction form
    769,095.19/1,154,366.52 = 390,287.89/x
  3. Step 3: Cross multiply
    769,095.19x = 1,154,366.52 × 390,287.89
  4. Step 4: Simplify right side
    769,095.19x = 450,535,273,377.44
  5. Step 5: Solve for x
    x = 450,535,273,377.44/769,095.19
  6. Step 6: Final answer
    x = 585,799.10

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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.