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Finding the Fourth Proportional to 652,307, 900,185.28 and 380,561.72

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Solution

The fourth proportional to 652,307, 900,185.28 and 380,561.72 is: 525,176.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,307 : 900,185.28 = 380,561.72 : x
  2. Step 2: Convert to fraction form
    652,307/900,185.28 = 380,561.72/x
  3. Step 3: Cross multiply
    652,307x = 900,185.28 × 380,561.72
  4. Step 4: Simplify right side
    652,307x = 342,576,058,475.48
  5. Step 5: Solve for x
    x = 342,576,058,475.48/652,307
  6. Step 6: Final answer
    x = 525,176.12

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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.