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Finding the Fourth Proportional to 1,038,303, 1,432,858.18 and 561,375

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Solution

The fourth proportional to 1,038,303, 1,432,858.18 and 561,375 is: 774,697.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,303 : 1,432,858.18 = 561,375 : x
  2. Step 2: Convert to fraction form
    1,038,303/1,432,858.18 = 561,375/x
  3. Step 3: Cross multiply
    1,038,303x = 1,432,858.18 × 561,375
  4. Step 4: Simplify right side
    1,038,303x = 804,370,760,797.50
  5. Step 5: Solve for x
    x = 804,370,760,797.50/1,038,303
  6. Step 6: Final answer
    x = 774,697.52

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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.