Home / 780,189.84-1,171,217.88-464,795.28

Finding the Fourth Proportional to 780,189.84, 1,171,217.88 and 464,795.28

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Solution

The fourth proportional to 780,189.84, 1,171,217.88 and 464,795.28 is: 697,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,189.84 : 1,171,217.88 = 464,795.28 : x
  2. Step 2: Convert to fraction form
    780,189.84/1,171,217.88 = 464,795.28/x
  3. Step 3: Cross multiply
    780,189.84x = 1,171,217.88 × 464,795.28
  4. Step 4: Simplify right side
    780,189.84x = 544,376,542,475.61
  5. Step 5: Solve for x
    x = 544,376,542,475.61/780,189.84
  6. Step 6: Final answer
    x = 697,748.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.