Home / 778,847.40-1,168,271.10-479,665.80

Finding the Fourth Proportional to 778,847.40, 1,168,271.10 and 479,665.80

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Solution

The fourth proportional to 778,847.40, 1,168,271.10 and 479,665.80 is: 719,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,847.40 : 1,168,271.10 = 479,665.80 : x
  2. Step 2: Convert to fraction form
    778,847.40/1,168,271.10 = 479,665.80/x
  3. Step 3: Cross multiply
    778,847.40x = 1,168,271.10 × 479,665.80
  4. Step 4: Simplify right side
    778,847.40x = 560,379,691,798.38
  5. Step 5: Solve for x
    x = 560,379,691,798.38/778,847.40
  6. Step 6: Final answer
    x = 719,498.70

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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.