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Finding the Fourth Proportional to 802,870.73, 1,107,859.78 and 440,199.16

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Solution

The fourth proportional to 802,870.73, 1,107,859.78 and 440,199.16 is: 607,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,870.73 : 1,107,859.78 = 440,199.16 : x
  2. Step 2: Convert to fraction form
    802,870.73/1,107,859.78 = 440,199.16/x
  3. Step 3: Cross multiply
    802,870.73x = 1,107,859.78 × 440,199.16
  4. Step 4: Simplify right side
    802,870.73x = 487,678,942,334.38
  5. Step 5: Solve for x
    x = 487,678,942,334.38/802,870.73
  6. Step 6: Final answer
    x = 607,419.00

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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.