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Finding the Fourth Proportional to 971,918.60, 1,453,212.30 and 719,976.20

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Solution

The fourth proportional to 971,918.60, 1,453,212.30 and 719,976.20 is: 1,076,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,918.60 : 1,453,212.30 = 719,976.20 : x
  2. Step 2: Convert to fraction form
    971,918.60/1,453,212.30 = 719,976.20/x
  3. Step 3: Cross multiply
    971,918.60x = 1,453,212.30 × 719,976.20
  4. Step 4: Simplify right side
    971,918.60x = 1,046,278,269,547.26
  5. Step 5: Solve for x
    x = 1,046,278,269,547.26/971,918.60
  6. Step 6: Final answer
    x = 1,076,508.12

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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.