Home / 1,118,280.48-1,543,291.92-842,144

Finding the Fourth Proportional to 1,118,280.48, 1,543,291.92 and 842,144

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Solution

The fourth proportional to 1,118,280.48, 1,543,291.92 and 842,144 is: 1,162,207.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,280.48 : 1,543,291.92 = 842,144 : x
  2. Step 2: Convert to fraction form
    1,118,280.48/1,543,291.92 = 842,144/x
  3. Step 3: Cross multiply
    1,118,280.48x = 1,543,291.92 × 842,144
  4. Step 4: Simplify right side
    1,118,280.48x = 1,299,674,030,676.48
  5. Step 5: Solve for x
    x = 1,299,674,030,676.48/1,118,280.48
  6. Step 6: Final answer
    x = 1,162,207.56

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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.