Home / 1,290,463.06-1,780,335.02-738,884

Finding the Fourth Proportional to 1,290,463.06, 1,780,335.02 and 738,884

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Solution

The fourth proportional to 1,290,463.06, 1,780,335.02 and 738,884 is: 1,019,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,463.06 : 1,780,335.02 = 738,884 : x
  2. Step 2: Convert to fraction form
    1,290,463.06/1,780,335.02 = 738,884/x
  3. Step 3: Cross multiply
    1,290,463.06x = 1,780,335.02 × 738,884
  4. Step 4: Simplify right side
    1,290,463.06x = 1,315,461,060,917.68
  5. Step 5: Solve for x
    x = 1,315,461,060,917.68/1,290,463.06
  6. Step 6: Final answer
    x = 1,019,371.34

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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.