Home / 1,220,957.76-1,831,747.84-379,516.80

Finding the Fourth Proportional to 1,220,957.76, 1,831,747.84 and 379,516.80

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Solution

The fourth proportional to 1,220,957.76, 1,831,747.84 and 379,516.80 is: 569,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,957.76 : 1,831,747.84 = 379,516.80 : x
  2. Step 2: Convert to fraction form
    1,220,957.76/1,831,747.84 = 379,516.80/x
  3. Step 3: Cross multiply
    1,220,957.76x = 1,831,747.84 × 379,516.80
  4. Step 4: Simplify right side
    1,220,957.76x = 695,179,078,643.71
  5. Step 5: Solve for x
    x = 695,179,078,643.71/1,220,957.76
  6. Step 6: Final answer
    x = 569,371.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.