Home / 820,947.20-1,232,198.40-506,019.20

Finding the Fourth Proportional to 820,947.20, 1,232,198.40 and 506,019.20

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Solution

The fourth proportional to 820,947.20, 1,232,198.40 and 506,019.20 is: 759,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,947.20 : 1,232,198.40 = 506,019.20 : x
  2. Step 2: Convert to fraction form
    820,947.20/1,232,198.40 = 506,019.20/x
  3. Step 3: Cross multiply
    820,947.20x = 1,232,198.40 × 506,019.20
  4. Step 4: Simplify right side
    820,947.20x = 623,516,048,609.28
  5. Step 5: Solve for x
    x = 623,516,048,609.28/820,947.20
  6. Step 6: Final answer
    x = 759,508.10

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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.