Home / 675,931.52-932,786.33-421,282.50

Finding the Fourth Proportional to 675,931.52, 932,786.33 and 421,282.50

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Solution

The fourth proportional to 675,931.52, 932,786.33 and 421,282.50 is: 581,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,931.52 : 932,786.33 = 421,282.50 : x
  2. Step 2: Convert to fraction form
    675,931.52/932,786.33 = 421,282.50/x
  3. Step 3: Cross multiply
    675,931.52x = 932,786.33 × 421,282.50
  4. Step 4: Simplify right side
    675,931.52x = 392,966,554,961.81
  5. Step 5: Solve for x
    x = 392,966,554,961.81/675,931.52
  6. Step 6: Final answer
    x = 581,370.37

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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.