Home / 572,287.64-858,437.40-172,931.72

Finding the Fourth Proportional to 572,287.64, 858,437.40 and 172,931.72

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Solution

The fourth proportional to 572,287.64, 858,437.40 and 172,931.72 is: 259,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,287.64 : 858,437.40 = 172,931.72 : x
  2. Step 2: Convert to fraction form
    572,287.64/858,437.40 = 172,931.72/x
  3. Step 3: Cross multiply
    572,287.64x = 858,437.40 × 172,931.72
  4. Step 4: Simplify right side
    572,287.64x = 148,451,056,094.33
  5. Step 5: Solve for x
    x = 148,451,056,094.33/572,287.64
  6. Step 6: Final answer
    x = 259,399.37

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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.