Home / 1,587,221.52-2,190,109.77-975,177.42

Finding the Fourth Proportional to 1,587,221.52, 2,190,109.77 and 975,177.42

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Solution

The fourth proportional to 1,587,221.52, 2,190,109.77 and 975,177.42 is: 1,345,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,221.52 : 2,190,109.77 = 975,177.42 : x
  2. Step 2: Convert to fraction form
    1,587,221.52/2,190,109.77 = 975,177.42/x
  3. Step 3: Cross multiply
    1,587,221.52x = 2,190,109.77 × 975,177.42
  4. Step 4: Simplify right side
    1,587,221.52x = 2,135,745,595,025.39
  5. Step 5: Solve for x
    x = 2,135,745,595,025.39/1,587,221.52
  6. Step 6: Final answer
    x = 1,345,587.60

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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.