Home / 572,407.29-858,629.16-287,942.45

Finding the Fourth Proportional to 572,407.29, 858,629.16 and 287,942.45

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Solution

The fourth proportional to 572,407.29, 858,629.16 and 287,942.45 is: 431,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,407.29 : 858,629.16 = 287,942.45 : x
  2. Step 2: Convert to fraction form
    572,407.29/858,629.16 = 287,942.45/x
  3. Step 3: Cross multiply
    572,407.29x = 858,629.16 × 287,942.45
  4. Step 4: Simplify right side
    572,407.29x = 247,235,779,678.70
  5. Step 5: Solve for x
    x = 247,235,779,678.70/572,407.29
  6. Step 6: Final answer
    x = 431,922.84

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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.