Home / 1,220,642.40-1,831,255.20-589,036.80

Finding the Fourth Proportional to 1,220,642.40, 1,831,255.20 and 589,036.80

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Solution

The fourth proportional to 1,220,642.40, 1,831,255.20 and 589,036.80 is: 883,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,642.40 : 1,831,255.20 = 589,036.80 : x
  2. Step 2: Convert to fraction form
    1,220,642.40/1,831,255.20 = 589,036.80/x
  3. Step 3: Cross multiply
    1,220,642.40x = 1,831,255.20 × 589,036.80
  4. Step 4: Simplify right side
    1,220,642.40x = 1,078,676,702,991.36
  5. Step 5: Solve for x
    x = 1,078,676,702,991.36/1,220,642.40
  6. Step 6: Final answer
    x = 883,695.92

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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.