Home / 1,332,031.96-1,838,166.78-728,407

Finding the Fourth Proportional to 1,332,031.96, 1,838,166.78 and 728,407

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Solution

The fourth proportional to 1,332,031.96, 1,838,166.78 and 728,407 is: 1,005,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,031.96 : 1,838,166.78 = 728,407 : x
  2. Step 2: Convert to fraction form
    1,332,031.96/1,838,166.78 = 728,407/x
  3. Step 3: Cross multiply
    1,332,031.96x = 1,838,166.78 × 728,407
  4. Step 4: Simplify right side
    1,332,031.96x = 1,338,933,549,719.46
  5. Step 5: Solve for x
    x = 1,338,933,549,719.46/1,332,031.96
  6. Step 6: Final answer
    x = 1,005,181.25

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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.