Home / 686,115.04-946,824.56-380,188.74

Finding the Fourth Proportional to 686,115.04, 946,824.56 and 380,188.74

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Solution

The fourth proportional to 686,115.04, 946,824.56 and 380,188.74 is: 524,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,115.04 : 946,824.56 = 380,188.74 : x
  2. Step 2: Convert to fraction form
    686,115.04/946,824.56 = 380,188.74/x
  3. Step 3: Cross multiply
    686,115.04x = 946,824.56 × 380,188.74
  4. Step 4: Simplify right side
    686,115.04x = 359,972,036,467.45
  5. Step 5: Solve for x
    x = 359,972,036,467.45/686,115.04
  6. Step 6: Final answer
    x = 524,652.60

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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.