Home / 1,440,074.88-1,987,424.64-836,424

Finding the Fourth Proportional to 1,440,074.88, 1,987,424.64 and 836,424

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Solution

The fourth proportional to 1,440,074.88, 1,987,424.64 and 836,424 is: 1,154,335.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,074.88 : 1,987,424.64 = 836,424 : x
  2. Step 2: Convert to fraction form
    1,440,074.88/1,987,424.64 = 836,424/x
  3. Step 3: Cross multiply
    1,440,074.88x = 1,987,424.64 × 836,424
  4. Step 4: Simplify right side
    1,440,074.88x = 1,662,329,667,087.36
  5. Step 5: Solve for x
    x = 1,662,329,667,087.36/1,440,074.88
  6. Step 6: Final answer
    x = 1,154,335.58

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1.5x scale

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.