Home / 778,858.80-1,168,288.20-497,540.40

Finding the Fourth Proportional to 778,858.80, 1,168,288.20 and 497,540.40

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Solution

The fourth proportional to 778,858.80, 1,168,288.20 and 497,540.40 is: 746,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,858.80 : 1,168,288.20 = 497,540.40 : x
  2. Step 2: Convert to fraction form
    778,858.80/1,168,288.20 = 497,540.40/x
  3. Step 3: Cross multiply
    778,858.80x = 1,168,288.20 × 497,540.40
  4. Step 4: Simplify right side
    778,858.80x = 581,270,578,343.28
  5. Step 5: Solve for x
    x = 581,270,578,343.28/778,858.80
  6. Step 6: Final answer
    x = 746,310.60

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Double scale
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Similar ratio
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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.