Home / 778,841.30-1,167,387.15-329,485.70

Finding the Fourth Proportional to 778,841.30, 1,167,387.15 and 329,485.70

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Solution

The fourth proportional to 778,841.30, 1,167,387.15 and 329,485.70 is: 493,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,841.30 : 1,167,387.15 = 329,485.70 : x
  2. Step 2: Convert to fraction form
    778,841.30/1,167,387.15 = 329,485.70/x
  3. Step 3: Cross multiply
    778,841.30x = 1,167,387.15 × 329,485.70
  4. Step 4: Simplify right side
    778,841.30x = 384,637,372,288.76
  5. Step 5: Solve for x
    x = 384,637,372,288.76/778,841.30
  6. Step 6: Final answer
    x = 493,858.47

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Double scale
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1.5x scale

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.