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Finding the Fourth Proportional to 561,193.88, 774,447.53 and 303,070.80

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Solution

The fourth proportional to 561,193.88, 774,447.53 and 303,070.80 is: 418,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,193.88 : 774,447.53 = 303,070.80 : x
  2. Step 2: Convert to fraction form
    561,193.88/774,447.53 = 303,070.80/x
  3. Step 3: Cross multiply
    561,193.88x = 774,447.53 × 303,070.80
  4. Step 4: Simplify right side
    561,193.88x = 234,712,432,411.86
  5. Step 5: Solve for x
    x = 234,712,432,411.86/561,193.88
  6. Step 6: Final answer
    x = 418,237.69

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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.