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Finding the Fourth Proportional to 561,360.98, 774,678.03 and 303,237.88

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Solution

The fourth proportional to 561,360.98, 774,678.03 and 303,237.88 is: 418,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,360.98 : 774,678.03 = 303,237.88 : x
  2. Step 2: Convert to fraction form
    561,360.98/774,678.03 = 303,237.88/x
  3. Step 3: Cross multiply
    561,360.98x = 774,678.03 × 303,237.88
  4. Step 4: Simplify right side
    561,360.98x = 234,911,720,425.94
  5. Step 5: Solve for x
    x = 234,911,720,425.94/561,360.98
  6. Step 6: Final answer
    x = 418,468.20

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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.