Home / 979,864.08-1,469,810.85-340,188.12

Finding the Fourth Proportional to 979,864.08, 1,469,810.85 and 340,188.12

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Solution

The fourth proportional to 979,864.08, 1,469,810.85 and 340,188.12 is: 510,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,864.08 : 1,469,810.85 = 340,188.12 : x
  2. Step 2: Convert to fraction form
    979,864.08/1,469,810.85 = 340,188.12/x
  3. Step 3: Cross multiply
    979,864.08x = 1,469,810.85 × 340,188.12
  4. Step 4: Simplify right side
    979,864.08x = 500,012,189,817.10
  5. Step 5: Solve for x
    x = 500,012,189,817.10/979,864.08
  6. Step 6: Final answer
    x = 510,287.29

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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.