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Finding the Fourth Proportional to 803,504.64, 1,205,648.64 and 330,332.16

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Solution

The fourth proportional to 803,504.64, 1,205,648.64 and 330,332.16 is: 495,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,504.64 : 1,205,648.64 = 330,332.16 : x
  2. Step 2: Convert to fraction form
    803,504.64/1,205,648.64 = 330,332.16/x
  3. Step 3: Cross multiply
    803,504.64x = 1,205,648.64 × 330,332.16
  4. Step 4: Simplify right side
    803,504.64x = 398,264,519,452.26
  5. Step 5: Solve for x
    x = 398,264,519,452.26/803,504.64
  6. Step 6: Final answer
    x = 495,659.27

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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.