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Finding the Fourth Proportional to 661,075.92, 912,259.08 and 359,263.44

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Solution

The fourth proportional to 661,075.92, 912,259.08 and 359,263.44 is: 495,769.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,075.92 : 912,259.08 = 359,263.44 : x
  2. Step 2: Convert to fraction form
    661,075.92/912,259.08 = 359,263.44/x
  3. Step 3: Cross multiply
    661,075.92x = 912,259.08 × 359,263.44
  4. Step 4: Simplify right side
    661,075.92x = 327,741,335,252.04
  5. Step 5: Solve for x
    x = 327,741,335,252.04/661,075.92
  6. Step 6: Final answer
    x = 495,769.59

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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.