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Finding the Fourth Proportional to 690,576.60, 953,142.75 and 464,090.88

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Solution

The fourth proportional to 690,576.60, 953,142.75 and 464,090.88 is: 640,544.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,576.60 : 953,142.75 = 464,090.88 : x
  2. Step 2: Convert to fraction form
    690,576.60/953,142.75 = 464,090.88/x
  3. Step 3: Cross multiply
    690,576.60x = 953,142.75 × 464,090.88
  4. Step 4: Simplify right side
    690,576.60x = 442,344,857,613.12
  5. Step 5: Solve for x
    x = 442,344,857,613.12/690,576.60
  6. Step 6: Final answer
    x = 640,544.23

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1.5x scale

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.