Home / 721,768.48-1,081,938.72-342,022.24

Finding the Fourth Proportional to 721,768.48, 1,081,938.72 and 342,022.24

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Solution

The fourth proportional to 721,768.48, 1,081,938.72 and 342,022.24 is: 512,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,768.48 : 1,081,938.72 = 342,022.24 : x
  2. Step 2: Convert to fraction form
    721,768.48/1,081,938.72 = 342,022.24/x
  3. Step 3: Cross multiply
    721,768.48x = 1,081,938.72 × 342,022.24
  4. Step 4: Simplify right side
    721,768.48x = 370,047,104,557.13
  5. Step 5: Solve for x
    x = 370,047,104,557.13/721,768.48
  6. Step 6: Final answer
    x = 512,695.02

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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.