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Finding the Fourth Proportional to 1,038,305, 1,432,860.94 and 561,377

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Solution

The fourth proportional to 1,038,305, 1,432,860.94 and 561,377 is: 774,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,305 : 1,432,860.94 = 561,377 : x
  2. Step 2: Convert to fraction form
    1,038,305/1,432,860.94 = 561,377/x
  3. Step 3: Cross multiply
    1,038,305x = 1,432,860.94 × 561,377
  4. Step 4: Simplify right side
    1,038,305x = 804,375,175,914.38
  5. Step 5: Solve for x
    x = 804,375,175,914.38/1,038,305
  6. Step 6: Final answer
    x = 774,700.28

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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.