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Finding the Fourth Proportional to 690,323.72, 952,281.36 and 475,090.12

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Solution

The fourth proportional to 690,323.72, 952,281.36 and 475,090.12 is: 655,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,323.72 : 952,281.36 = 475,090.12 : x
  2. Step 2: Convert to fraction form
    690,323.72/952,281.36 = 475,090.12/x
  3. Step 3: Cross multiply
    690,323.72x = 952,281.36 × 475,090.12
  4. Step 4: Simplify right side
    690,323.72x = 452,419,465,596.16
  5. Step 5: Solve for x
    x = 452,419,465,596.16/690,323.72
  6. Step 6: Final answer
    x = 655,372.91

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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.