Home / 677,710.20-1,016,565.30-373,279.80

Finding the Fourth Proportional to 677,710.20, 1,016,565.30 and 373,279.80

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Solution

The fourth proportional to 677,710.20, 1,016,565.30 and 373,279.80 is: 559,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,710.20 : 1,016,565.30 = 373,279.80 : x
  2. Step 2: Convert to fraction form
    677,710.20/1,016,565.30 = 373,279.80/x
  3. Step 3: Cross multiply
    677,710.20x = 1,016,565.30 × 373,279.80
  4. Step 4: Simplify right side
    677,710.20x = 379,463,291,870.94
  5. Step 5: Solve for x
    x = 379,463,291,870.94/677,710.20
  6. Step 6: Final answer
    x = 559,919.70

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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.