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Finding the Fourth Proportional to 804,259.60, 1,205,806.20 and 330,701.20

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Solution

The fourth proportional to 804,259.60, 1,205,806.20 and 330,701.20 is: 495,812.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,259.60 : 1,205,806.20 = 330,701.20 : x
  2. Step 2: Convert to fraction form
    804,259.60/1,205,806.20 = 330,701.20/x
  3. Step 3: Cross multiply
    804,259.60x = 1,205,806.20 × 330,701.20
  4. Step 4: Simplify right side
    804,259.60x = 398,761,557,307.44
  5. Step 5: Solve for x
    x = 398,761,557,307.44/804,259.60
  6. Step 6: Final answer
    x = 495,812.00

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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.