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Finding the Fourth Proportional to 1,038,304, 1,432,859.56 and 561,376

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Solution

The fourth proportional to 1,038,304, 1,432,859.56 and 561,376 is: 774,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,304 : 1,432,859.56 = 561,376 : x
  2. Step 2: Convert to fraction form
    1,038,304/1,432,859.56 = 561,376/x
  3. Step 3: Cross multiply
    1,038,304x = 1,432,859.56 × 561,376
  4. Step 4: Simplify right side
    1,038,304x = 804,372,968,354.56
  5. Step 5: Solve for x
    x = 804,372,968,354.56/1,038,304
  6. Step 6: Final answer
    x = 774,698.90

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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.