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Finding the Fourth Proportional to 704,785.32, 972,611.01 and 382,498.20

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Solution

The fourth proportional to 704,785.32, 972,611.01 and 382,498.20 is: 527,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,785.32 : 972,611.01 = 382,498.20 : x
  2. Step 2: Convert to fraction form
    704,785.32/972,611.01 = 382,498.20/x
  3. Step 3: Cross multiply
    704,785.32x = 972,611.01 × 382,498.20
  4. Step 4: Simplify right side
    704,785.32x = 372,021,960,625.18
  5. Step 5: Solve for x
    x = 372,021,960,625.18/704,785.32
  6. Step 6: Final answer
    x = 527,851.46

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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.