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Finding the Fourth Proportional to 836,348.10, 1,255,506.30 and 830,443.20

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Solution

The fourth proportional to 836,348.10, 1,255,506.30 and 830,443.20 is: 1,246,642.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,348.10 : 1,255,506.30 = 830,443.20 : x
  2. Step 2: Convert to fraction form
    836,348.10/1,255,506.30 = 830,443.20/x
  3. Step 3: Cross multiply
    836,348.10x = 1,255,506.30 × 830,443.20
  4. Step 4: Simplify right side
    836,348.10x = 1,042,626,669,392.16
  5. Step 5: Solve for x
    x = 1,042,626,669,392.16/836,348.10
  6. Step 6: Final answer
    x = 1,246,642.00

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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.