Home / 682,586.32-941,966.28-380,780.56

Finding the Fourth Proportional to 682,586.32, 941,966.28 and 380,780.56

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Solution

The fourth proportional to 682,586.32, 941,966.28 and 380,780.56 is: 525,475.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,586.32 : 941,966.28 = 380,780.56 : x
  2. Step 2: Convert to fraction form
    682,586.32/941,966.28 = 380,780.56/x
  3. Step 3: Cross multiply
    682,586.32x = 941,966.28 × 380,780.56
  4. Step 4: Simplify right side
    682,586.32x = 358,682,447,599.52
  5. Step 5: Solve for x
    x = 358,682,447,599.52/682,586.32
  6. Step 6: Final answer
    x = 525,475.59

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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.