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Finding the Fourth Proportional to 706,445.88, 974,920.97 and 404,698.20

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Solution

The fourth proportional to 706,445.88, 974,920.97 and 404,698.20 is: 558,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,445.88 : 974,920.97 = 404,698.20 : x
  2. Step 2: Convert to fraction form
    706,445.88/974,920.97 = 404,698.20/x
  3. Step 3: Cross multiply
    706,445.88x = 974,920.97 × 404,698.20
  4. Step 4: Simplify right side
    706,445.88x = 394,548,762,368.12
  5. Step 5: Solve for x
    x = 394,548,762,368.12/706,445.88
  6. Step 6: Final answer
    x = 558,498.21

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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.