Home / 858,525.04-1,287,814.98-431,827.84

Finding the Fourth Proportional to 858,525.04, 1,287,814.98 and 431,827.84

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Solution

The fourth proportional to 858,525.04, 1,287,814.98 and 431,827.84 is: 647,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,525.04 : 1,287,814.98 = 431,827.84 : x
  2. Step 2: Convert to fraction form
    858,525.04/1,287,814.98 = 431,827.84/x
  3. Step 3: Cross multiply
    858,525.04x = 1,287,814.98 × 431,827.84
  4. Step 4: Simplify right side
    858,525.04x = 556,114,354,693.97
  5. Step 5: Solve for x
    x = 556,114,354,693.97/858,525.04
  6. Step 6: Final answer
    x = 647,755.55

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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.