Home / 1,055,421.42-1,456,554.45-642,119.46

Finding the Fourth Proportional to 1,055,421.42, 1,456,554.45 and 642,119.46

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Solution

The fourth proportional to 1,055,421.42, 1,456,554.45 and 642,119.46 is: 886,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,421.42 : 1,456,554.45 = 642,119.46 : x
  2. Step 2: Convert to fraction form
    1,055,421.42/1,456,554.45 = 642,119.46/x
  3. Step 3: Cross multiply
    1,055,421.42x = 1,456,554.45 × 642,119.46
  4. Step 4: Simplify right side
    1,055,421.42x = 935,281,956,894.60
  5. Step 5: Solve for x
    x = 935,281,956,894.60/1,055,421.42
  6. Step 6: Final answer
    x = 886,169.20

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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.