Home / 1,292,196.32-1,782,925.88-1,086,247.70

Finding the Fourth Proportional to 1,292,196.32, 1,782,925.88 and 1,086,247.70

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Solution

The fourth proportional to 1,292,196.32, 1,782,925.88 and 1,086,247.70 is: 1,498,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,196.32 : 1,782,925.88 = 1,086,247.70 : x
  2. Step 2: Convert to fraction form
    1,292,196.32/1,782,925.88 = 1,086,247.70/x
  3. Step 3: Cross multiply
    1,292,196.32x = 1,782,925.88 × 1,086,247.70
  4. Step 4: Simplify right side
    1,292,196.32x = 1,936,699,136,420.48
  5. Step 5: Solve for x
    x = 1,936,699,136,420.48/1,292,196.32
  6. Step 6: Final answer
    x = 1,498,765.40

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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.