Home / 1,407,602.56-2,111,079.12-839,143.12

Finding the Fourth Proportional to 1,407,602.56, 2,111,079.12 and 839,143.12

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Solution

The fourth proportional to 1,407,602.56, 2,111,079.12 and 839,143.12 is: 1,258,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,602.56 : 2,111,079.12 = 839,143.12 : x
  2. Step 2: Convert to fraction form
    1,407,602.56/2,111,079.12 = 839,143.12/x
  3. Step 3: Cross multiply
    1,407,602.56x = 2,111,079.12 × 839,143.12
  4. Step 4: Simplify right side
    1,407,602.56x = 1,771,497,519,323.65
  5. Step 5: Solve for x
    x = 1,771,497,519,323.65/1,407,602.56
  6. Step 6: Final answer
    x = 1,258,521.10

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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.