Home / 658,628.69-908,895.79-372,142.63

Finding the Fourth Proportional to 658,628.69, 908,895.79 and 372,142.63

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Solution

The fourth proportional to 658,628.69, 908,895.79 and 372,142.63 is: 513,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,628.69 : 908,895.79 = 372,142.63 : x
  2. Step 2: Convert to fraction form
    658,628.69/908,895.79 = 372,142.63/x
  3. Step 3: Cross multiply
    658,628.69x = 908,895.79 × 372,142.63
  4. Step 4: Simplify right side
    658,628.69x = 338,238,869,686.53
  5. Step 5: Solve for x
    x = 338,238,869,686.53/658,628.69
  6. Step 6: Final answer
    x = 513,550.16

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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.