Home / 1,211,913.52-1,672,427.04-660,617.15

Finding the Fourth Proportional to 1,211,913.52, 1,672,427.04 and 660,617.15

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Solution

The fourth proportional to 1,211,913.52, 1,672,427.04 and 660,617.15 is: 911,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,913.52 : 1,672,427.04 = 660,617.15 : x
  2. Step 2: Convert to fraction form
    1,211,913.52/1,672,427.04 = 660,617.15/x
  3. Step 3: Cross multiply
    1,211,913.52x = 1,672,427.04 × 660,617.15
  4. Step 4: Simplify right side
    1,211,913.52x = 1,104,833,987,031.66
  5. Step 5: Solve for x
    x = 1,104,833,987,031.66/1,211,913.52
  6. Step 6: Final answer
    x = 911,644.24

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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.