Home / 1,205,022.72-1,807,217.28-572,678.40

Finding the Fourth Proportional to 1,205,022.72, 1,807,217.28 and 572,678.40

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Solution

The fourth proportional to 1,205,022.72, 1,807,217.28 and 572,678.40 is: 858,867.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,022.72 : 1,807,217.28 = 572,678.40 : x
  2. Step 2: Convert to fraction form
    1,205,022.72/1,807,217.28 = 572,678.40/x
  3. Step 3: Cross multiply
    1,205,022.72x = 1,807,217.28 × 572,678.40
  4. Step 4: Simplify right side
    1,205,022.72x = 1,034,954,300,362.75
  5. Step 5: Solve for x
    x = 1,034,954,300,362.75/1,205,022.72
  6. Step 6: Final answer
    x = 858,867.04

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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.