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Finding the Fourth Proportional to 656,530.80, 906,118.20 and 495,567.60

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Solution

The fourth proportional to 656,530.80, 906,118.20 and 495,567.60 is: 683,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,530.80 : 906,118.20 = 495,567.60 : x
  2. Step 2: Convert to fraction form
    656,530.80/906,118.20 = 495,567.60/x
  3. Step 3: Cross multiply
    656,530.80x = 906,118.20 × 495,567.60
  4. Step 4: Simplify right side
    656,530.80x = 449,042,821,690.32
  5. Step 5: Solve for x
    x = 449,042,821,690.32/656,530.80
  6. Step 6: Final answer
    x = 683,963.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.