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Finding the Fourth Proportional to 768,677.40, 1,060,872.66 and 446,323.32

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Solution

The fourth proportional to 768,677.40, 1,060,872.66 and 446,323.32 is: 615,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,677.40 : 1,060,872.66 = 446,323.32 : x
  2. Step 2: Convert to fraction form
    768,677.40/1,060,872.66 = 446,323.32/x
  3. Step 3: Cross multiply
    768,677.40x = 1,060,872.66 × 446,323.32
  4. Step 4: Simplify right side
    768,677.40x = 473,492,207,708.43
  5. Step 5: Solve for x
    x = 473,492,207,708.43/768,677.40
  6. Step 6: Final answer
    x = 615,983.00

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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.