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Finding the Fourth Proportional to 572,070.63, 858,244.68 and 172,687.55

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Solution

The fourth proportional to 572,070.63, 858,244.68 and 172,687.55 is: 259,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,070.63 : 858,244.68 = 172,687.55 : x
  2. Step 2: Convert to fraction form
    572,070.63/858,244.68 = 172,687.55/x
  3. Step 3: Cross multiply
    572,070.63x = 858,244.68 × 172,687.55
  4. Step 4: Simplify right side
    572,070.63x = 148,208,166,798.51
  5. Step 5: Solve for x
    x = 148,208,166,798.51/572,070.63
  6. Step 6: Final answer
    x = 259,073.19

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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.