Home / 1,239,426.78-1,711,968-1,022,421.84

Finding the Fourth Proportional to 1,239,426.78, 1,711,968 and 1,022,421.84

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Solution

The fourth proportional to 1,239,426.78, 1,711,968 and 1,022,421.84 is: 1,412,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,426.78 : 1,711,968 = 1,022,421.84 : x
  2. Step 2: Convert to fraction form
    1,239,426.78/1,711,968 = 1,022,421.84/x
  3. Step 3: Cross multiply
    1,239,426.78x = 1,711,968 × 1,022,421.84
  4. Step 4: Simplify right side
    1,239,426.78x = 1,750,353,472,581.12
  5. Step 5: Solve for x
    x = 1,750,353,472,581.12/1,239,426.78
  6. Step 6: Final answer
    x = 1,412,228.22

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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.