Home / 979,904.20-1,469,856.30-349,529.80

Finding the Fourth Proportional to 979,904.20, 1,469,856.30 and 349,529.80

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Solution

The fourth proportional to 979,904.20, 1,469,856.30 and 349,529.80 is: 524,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,904.20 : 1,469,856.30 = 349,529.80 : x
  2. Step 2: Convert to fraction form
    979,904.20/1,469,856.30 = 349,529.80/x
  3. Step 3: Cross multiply
    979,904.20x = 1,469,856.30 × 349,529.80
  4. Step 4: Simplify right side
    979,904.20x = 513,758,578,567.74
  5. Step 5: Solve for x
    x = 513,758,578,567.74/979,904.20
  6. Step 6: Final answer
    x = 524,294.70

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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.