Home / 677,311.21-934,731.62-375,505.21

Finding the Fourth Proportional to 677,311.21, 934,731.62 and 375,505.21

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Solution

The fourth proportional to 677,311.21, 934,731.62 and 375,505.21 is: 518,220.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,311.21 : 934,731.62 = 375,505.21 : x
  2. Step 2: Convert to fraction form
    677,311.21/934,731.62 = 375,505.21/x
  3. Step 3: Cross multiply
    677,311.21x = 934,731.62 × 375,505.21
  4. Step 4: Simplify right side
    677,311.21x = 350,996,593,261.74
  5. Step 5: Solve for x
    x = 350,996,593,261.74/677,311.21
  6. Step 6: Final answer
    x = 518,220.56

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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.