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Finding the Fourth Proportional to 625,804.56, 864,323.04 and 424,250.64

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Solution

The fourth proportional to 625,804.56, 864,323.04 and 424,250.64 is: 585,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,804.56 : 864,323.04 = 424,250.64 : x
  2. Step 2: Convert to fraction form
    625,804.56/864,323.04 = 424,250.64/x
  3. Step 3: Cross multiply
    625,804.56x = 864,323.04 × 424,250.64
  4. Step 4: Simplify right side
    625,804.56x = 366,689,602,886.75
  5. Step 5: Solve for x
    x = 366,689,602,886.75/625,804.56
  6. Step 6: Final answer
    x = 585,949.07

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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.