Home / 1,246,530.52-1,719,610.86-816,621.40

Finding the Fourth Proportional to 1,246,530.52, 1,719,610.86 and 816,621.40

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Solution

The fourth proportional to 1,246,530.52, 1,719,610.86 and 816,621.40 is: 1,126,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,530.52 : 1,719,610.86 = 816,621.40 : x
  2. Step 2: Convert to fraction form
    1,246,530.52/1,719,610.86 = 816,621.40/x
  3. Step 3: Cross multiply
    1,246,530.52x = 1,719,610.86 × 816,621.40
  4. Step 4: Simplify right side
    1,246,530.52x = 1,404,271,027,948.40
  5. Step 5: Solve for x
    x = 1,404,271,027,948.40/1,246,530.52
  6. Step 6: Final answer
    x = 1,126,543.64

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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.