Home / 1,112,417.52-1,667,636.70-402,287.80

Finding the Fourth Proportional to 1,112,417.52, 1,667,636.70 and 402,287.80

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Solution

The fourth proportional to 1,112,417.52, 1,667,636.70 and 402,287.80 is: 603,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,417.52 : 1,667,636.70 = 402,287.80 : x
  2. Step 2: Convert to fraction form
    1,112,417.52/1,667,636.70 = 402,287.80/x
  3. Step 3: Cross multiply
    1,112,417.52x = 1,667,636.70 × 402,287.80
  4. Step 4: Simplify right side
    1,112,417.52x = 670,869,899,242.26
  5. Step 5: Solve for x
    x = 670,869,899,242.26/1,112,417.52
  6. Step 6: Final answer
    x = 603,073.83

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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.