Home / 550,422.61-759,574.06-321,113.23

Finding the Fourth Proportional to 550,422.61, 759,574.06 and 321,113.23

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Solution

The fourth proportional to 550,422.61, 759,574.06 and 321,113.23 is: 443,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,422.61 : 759,574.06 = 321,113.23 : x
  2. Step 2: Convert to fraction form
    550,422.61/759,574.06 = 321,113.23/x
  3. Step 3: Cross multiply
    550,422.61x = 759,574.06 × 321,113.23
  4. Step 4: Simplify right side
    550,422.61x = 243,909,279,830.81
  5. Step 5: Solve for x
    x = 243,909,279,830.81/550,422.61
  6. Step 6: Final answer
    x = 443,130.92

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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.