Home / 1,981,057.04-2,733,868.80-1,121,784.74

Finding the Fourth Proportional to 1,981,057.04, 2,733,868.80 and 1,121,784.74

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Solution

The fourth proportional to 1,981,057.04, 2,733,868.80 and 1,121,784.74 is: 1,548,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,057.04 : 2,733,868.80 = 1,121,784.74 : x
  2. Step 2: Convert to fraction form
    1,981,057.04/2,733,868.80 = 1,121,784.74/x
  3. Step 3: Cross multiply
    1,981,057.04x = 2,733,868.80 × 1,121,784.74
  4. Step 4: Simplify right side
    1,981,057.04x = 3,066,812,301,002.11
  5. Step 5: Solve for x
    x = 3,066,812,301,002.11/1,981,057.04
  6. Step 6: Final answer
    x = 1,548,068.65

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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.