Home / 778,865.80-1,168,298.70-329,437.30

Finding the Fourth Proportional to 778,865.80, 1,168,298.70 and 329,437.30

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Solution

The fourth proportional to 778,865.80, 1,168,298.70 and 329,437.30 is: 494,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,865.80 : 1,168,298.70 = 329,437.30 : x
  2. Step 2: Convert to fraction form
    778,865.80/1,168,298.70 = 329,437.30/x
  3. Step 3: Cross multiply
    778,865.80x = 1,168,298.70 × 329,437.30
  4. Step 4: Simplify right side
    778,865.80x = 384,881,169,321.51
  5. Step 5: Solve for x
    x = 384,881,169,321.51/778,865.80
  6. Step 6: Final answer
    x = 494,155.95

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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.