Home / 1,211,461.92-1,671,795.72-660,182.40

Finding the Fourth Proportional to 1,211,461.92, 1,671,795.72 and 660,182.40

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Solution

The fourth proportional to 1,211,461.92, 1,671,795.72 and 660,182.40 is: 911,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,461.92 : 1,671,795.72 = 660,182.40 : x
  2. Step 2: Convert to fraction form
    1,211,461.92/1,671,795.72 = 660,182.40/x
  3. Step 3: Cross multiply
    1,211,461.92x = 1,671,795.72 × 660,182.40
  4. Step 4: Simplify right side
    1,211,461.92x = 1,103,690,110,739.33
  5. Step 5: Solve for x
    x = 1,103,690,110,739.33/1,211,461.92
  6. Step 6: Final answer
    x = 911,039.87

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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.