Home / 817,847.70-1,226,771.55-518,666.10

Finding the Fourth Proportional to 817,847.70, 1,226,771.55 and 518,666.10

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Solution

The fourth proportional to 817,847.70, 1,226,771.55 and 518,666.10 is: 777,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,847.70 : 1,226,771.55 = 518,666.10 : x
  2. Step 2: Convert to fraction form
    817,847.70/1,226,771.55 = 518,666.10/x
  3. Step 3: Cross multiply
    817,847.70x = 1,226,771.55 × 518,666.10
  4. Step 4: Simplify right side
    817,847.70x = 636,284,815,429.46
  5. Step 5: Solve for x
    x = 636,284,815,429.46/817,847.70
  6. Step 6: Final answer
    x = 777,999.15

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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.