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Finding the Fourth Proportional to 634,008.34, 874,421.34 and 557,363.56

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Solution

The fourth proportional to 634,008.34, 874,421.34 and 557,363.56 is: 768,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,008.34 : 874,421.34 = 557,363.56 : x
  2. Step 2: Convert to fraction form
    634,008.34/874,421.34 = 557,363.56/x
  3. Step 3: Cross multiply
    634,008.34x = 874,421.34 × 557,363.56
  4. Step 4: Simplify right side
    634,008.34x = 487,370,591,002.37
  5. Step 5: Solve for x
    x = 487,370,591,002.37/634,008.34
  6. Step 6: Final answer
    x = 768,713.22

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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.