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Finding the Fourth Proportional to 675,419.22, 932,085.90 and 369,489.06

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Solution

The fourth proportional to 675,419.22, 932,085.90 and 369,489.06 is: 509,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,419.22 : 932,085.90 = 369,489.06 : x
  2. Step 2: Convert to fraction form
    675,419.22/932,085.90 = 369,489.06/x
  3. Step 3: Cross multiply
    675,419.22x = 932,085.90 × 369,489.06
  4. Step 4: Simplify right side
    675,419.22x = 344,395,543,030.25
  5. Step 5: Solve for x
    x = 344,395,543,030.25/675,419.22
  6. Step 6: Final answer
    x = 509,898.94

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1.5x scale

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.