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Finding the Fourth Proportional to 690,760.48, 952,884.60 and 475,526.88

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Solution

The fourth proportional to 690,760.48, 952,884.60 and 475,526.88 is: 655,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,760.48 : 952,884.60 = 475,526.88 : x
  2. Step 2: Convert to fraction form
    690,760.48/952,884.60 = 475,526.88/x
  3. Step 3: Cross multiply
    690,760.48x = 952,884.60 × 475,526.88
  4. Step 4: Simplify right side
    690,760.48x = 453,122,240,838.05
  5. Step 5: Solve for x
    x = 453,122,240,838.05/690,760.48
  6. Step 6: Final answer
    x = 655,975.92

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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.