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Finding the Fourth Proportional to 661,335.50, 912,649.48 and 359,535.98

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Solution

The fourth proportional to 661,335.50, 912,649.48 and 359,535.98 is: 496,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,335.50 : 912,649.48 = 359,535.98 : x
  2. Step 2: Convert to fraction form
    661,335.50/912,649.48 = 359,535.98/x
  3. Step 3: Cross multiply
    661,335.50x = 912,649.48 × 359,535.98
  4. Step 4: Simplify right side
    661,335.50x = 328,130,325,188.29
  5. Step 5: Solve for x
    x = 328,130,325,188.29/661,335.50
  6. Step 6: Final answer
    x = 496,163.18

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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.