Home / 1,186,640.82-1,779,972.39-288,090.45

Finding the Fourth Proportional to 1,186,640.82, 1,779,972.39 and 288,090.45

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Solution

The fourth proportional to 1,186,640.82, 1,779,972.39 and 288,090.45 is: 432,138.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,640.82 : 1,779,972.39 = 288,090.45 : x
  2. Step 2: Convert to fraction form
    1,186,640.82/1,779,972.39 = 288,090.45/x
  3. Step 3: Cross multiply
    1,186,640.82x = 1,779,972.39 × 288,090.45
  4. Step 4: Simplify right side
    1,186,640.82x = 512,793,046,822.68
  5. Step 5: Solve for x
    x = 512,793,046,822.68/1,186,640.82
  6. Step 6: Final answer
    x = 432,138.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.