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Finding the Fourth Proportional to 901,241.02, 1,243,713.72 and 561,709

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Solution

The fourth proportional to 901,241.02, 1,243,713.72 and 561,709 is: 775,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,241.02 : 1,243,713.72 = 561,709 : x
  2. Step 2: Convert to fraction form
    901,241.02/1,243,713.72 = 561,709/x
  3. Step 3: Cross multiply
    901,241.02x = 1,243,713.72 × 561,709
  4. Step 4: Simplify right side
    901,241.02x = 698,605,189,947.48
  5. Step 5: Solve for x
    x = 698,605,189,947.48/901,241.02
  6. Step 6: Final answer
    x = 775,159.11

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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.