Home / 1,980,538.40-2,733,151.20-1,121,264.48

Finding the Fourth Proportional to 1,980,538.40, 2,733,151.20 and 1,121,264.48

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Solution

The fourth proportional to 1,980,538.40, 2,733,151.20 and 1,121,264.48 is: 1,547,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,538.40 : 2,733,151.20 = 1,121,264.48 : x
  2. Step 2: Convert to fraction form
    1,980,538.40/2,733,151.20 = 1,121,264.48/x
  3. Step 3: Cross multiply
    1,980,538.40x = 2,733,151.20 × 1,121,264.48
  4. Step 4: Simplify right side
    1,980,538.40x = 3,064,585,359,029.38
  5. Step 5: Solve for x
    x = 3,064,585,359,029.38/1,980,538.40
  6. Step 6: Final answer
    x = 1,547,349.63

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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.