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Finding the Fourth Proportional to 658,001.74, 908,048.66 and 386,074.26

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Solution

The fourth proportional to 658,001.74, 908,048.66 and 386,074.26 is: 532,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,001.74 : 908,048.66 = 386,074.26 : x
  2. Step 2: Convert to fraction form
    658,001.74/908,048.66 = 386,074.26/x
  3. Step 3: Cross multiply
    658,001.74x = 908,048.66 × 386,074.26
  4. Step 4: Simplify right side
    658,001.74x = 350,574,214,453.49
  5. Step 5: Solve for x
    x = 350,574,214,453.49/658,001.74
  6. Step 6: Final answer
    x = 532,786.15

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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.