Home / 802,687.32-1,107,678.51-440,102.70

Finding the Fourth Proportional to 802,687.32, 1,107,678.51 and 440,102.70

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Solution

The fourth proportional to 802,687.32, 1,107,678.51 and 440,102.70 is: 607,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,687.32 : 1,107,678.51 = 440,102.70 : x
  2. Step 2: Convert to fraction form
    802,687.32/1,107,678.51 = 440,102.70/x
  3. Step 3: Cross multiply
    802,687.32x = 1,107,678.51 × 440,102.70
  4. Step 4: Simplify right side
    802,687.32x = 487,492,302,982.98
  5. Step 5: Solve for x
    x = 487,492,302,982.98/802,687.32
  6. Step 6: Final answer
    x = 607,325.28

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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.