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Finding the Fourth Proportional to 802,630.84, 1,107,641.34 and 440,053.82

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Solution

The fourth proportional to 802,630.84, 1,107,641.34 and 440,053.82 is: 607,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,630.84 : 1,107,641.34 = 440,053.82 : x
  2. Step 2: Convert to fraction form
    802,630.84/1,107,641.34 = 440,053.82/x
  3. Step 3: Cross multiply
    802,630.84x = 1,107,641.34 × 440,053.82
  4. Step 4: Simplify right side
    802,630.84x = 487,421,802,856.92
  5. Step 5: Solve for x
    x = 487,421,802,856.92/802,630.84
  6. Step 6: Final answer
    x = 607,280.18

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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.