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Finding the Fourth Proportional to 539,888.04, 745,051.43 and 310,559.22

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Solution

The fourth proportional to 539,888.04, 745,051.43 and 310,559.22 is: 428,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,888.04 : 745,051.43 = 310,559.22 : x
  2. Step 2: Convert to fraction form
    539,888.04/745,051.43 = 310,559.22/x
  3. Step 3: Cross multiply
    539,888.04x = 745,051.43 × 310,559.22
  4. Step 4: Simplify right side
    539,888.04x = 231,382,585,682.63
  5. Step 5: Solve for x
    x = 231,382,585,682.63/539,888.04
  6. Step 6: Final answer
    x = 428,575.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.