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Finding the Fourth Proportional to 762,954.32, 1,053,066.84 and 440,850.80

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Solution

The fourth proportional to 762,954.32, 1,053,066.84 and 440,850.80 is: 608,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,954.32 : 1,053,066.84 = 440,850.80 : x
  2. Step 2: Convert to fraction form
    762,954.32/1,053,066.84 = 440,850.80/x
  3. Step 3: Cross multiply
    762,954.32x = 1,053,066.84 × 440,850.80
  4. Step 4: Simplify right side
    762,954.32x = 464,245,358,867.47
  5. Step 5: Solve for x
    x = 464,245,358,867.47/762,954.32
  6. Step 6: Final answer
    x = 608,483.82

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1.5x scale

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.