Home / 678,155.95-935,793.39-402,466.24

Finding the Fourth Proportional to 678,155.95, 935,793.39 and 402,466.24

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Solution

The fourth proportional to 678,155.95, 935,793.39 and 402,466.24 is: 555,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,155.95 : 935,793.39 = 402,466.24 : x
  2. Step 2: Convert to fraction form
    678,155.95/935,793.39 = 402,466.24/x
  3. Step 3: Cross multiply
    678,155.95x = 935,793.39 × 402,466.24
  4. Step 4: Simplify right side
    678,155.95x = 376,625,247,090.15
  5. Step 5: Solve for x
    x = 376,625,247,090.15/678,155.95
  6. Step 6: Final answer
    x = 555,366.72

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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.