Home / 786,374.68-1,085,161.30-480,962.56

Finding the Fourth Proportional to 786,374.68, 1,085,161.30 and 480,962.56

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Solution

The fourth proportional to 786,374.68, 1,085,161.30 and 480,962.56 is: 663,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,374.68 : 1,085,161.30 = 480,962.56 : x
  2. Step 2: Convert to fraction form
    786,374.68/1,085,161.30 = 480,962.56/x
  3. Step 3: Cross multiply
    786,374.68x = 1,085,161.30 × 480,962.56
  4. Step 4: Simplify right side
    786,374.68x = 521,921,956,860.93
  5. Step 5: Solve for x
    x = 521,921,956,860.93/786,374.68
  6. Step 6: Final answer
    x = 663,706.46

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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.