Home / 513,110.70-769,666.05-478,118.70

Finding the Fourth Proportional to 513,110.70, 769,666.05 and 478,118.70

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Solution

The fourth proportional to 513,110.70, 769,666.05 and 478,118.70 is: 717,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,110.70 : 769,666.05 = 478,118.70 : x
  2. Step 2: Convert to fraction form
    513,110.70/769,666.05 = 478,118.70/x
  3. Step 3: Cross multiply
    513,110.70x = 769,666.05 × 478,118.70
  4. Step 4: Simplify right side
    513,110.70x = 367,991,731,260.14
  5. Step 5: Solve for x
    x = 367,991,731,260.14/513,110.70
  6. Step 6: Final answer
    x = 717,178.05

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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.