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Finding the Fourth Proportional to 882,002.60, 1,321,035.60 and 681,673.40

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Solution

The fourth proportional to 882,002.60, 1,321,035.60 and 681,673.40 is: 1,020,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,002.60 : 1,321,035.60 = 681,673.40 : x
  2. Step 2: Convert to fraction form
    882,002.60/1,321,035.60 = 681,673.40/x
  3. Step 3: Cross multiply
    882,002.60x = 1,321,035.60 × 681,673.40
  4. Step 4: Simplify right side
    882,002.60x = 900,514,828,973.04
  5. Step 5: Solve for x
    x = 900,514,828,973.04/882,002.60
  6. Step 6: Final answer
    x = 1,020,988.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.