Home / 1,280,664.79-1,767,385.44-736,883.20

Finding the Fourth Proportional to 1,280,664.79, 1,767,385.44 and 736,883.20

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Solution

The fourth proportional to 1,280,664.79, 1,767,385.44 and 736,883.20 is: 1,016,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,664.79 : 1,767,385.44 = 736,883.20 : x
  2. Step 2: Convert to fraction form
    1,280,664.79/1,767,385.44 = 736,883.20/x
  3. Step 3: Cross multiply
    1,280,664.79x = 1,767,385.44 × 736,883.20
  4. Step 4: Simplify right side
    1,280,664.79x = 1,302,356,638,660.61
  5. Step 5: Solve for x
    x = 1,302,356,638,660.61/1,280,664.79
  6. Step 6: Final answer
    x = 1,016,937.96

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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.