Home / 804,915.70-1,207,373.55-431,667.70

Finding the Fourth Proportional to 804,915.70, 1,207,373.55 and 431,667.70

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Solution

The fourth proportional to 804,915.70, 1,207,373.55 and 431,667.70 is: 647,501.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,915.70 : 1,207,373.55 = 431,667.70 : x
  2. Step 2: Convert to fraction form
    804,915.70/1,207,373.55 = 431,667.70/x
  3. Step 3: Cross multiply
    804,915.70x = 1,207,373.55 × 431,667.70
  4. Step 4: Simplify right side
    804,915.70x = 521,184,163,369.34
  5. Step 5: Solve for x
    x = 521,184,163,369.34/804,915.70
  6. Step 6: Final answer
    x = 647,501.55

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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.