Home / 676,628.40-933,846.66-390,092.52

Finding the Fourth Proportional to 676,628.40, 933,846.66 and 390,092.52

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Solution

The fourth proportional to 676,628.40, 933,846.66 and 390,092.52 is: 538,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,628.40 : 933,846.66 = 390,092.52 : x
  2. Step 2: Convert to fraction form
    676,628.40/933,846.66 = 390,092.52/x
  3. Step 3: Cross multiply
    676,628.40x = 933,846.66 × 390,092.52
  4. Step 4: Simplify right side
    676,628.40x = 364,286,596,892.98
  5. Step 5: Solve for x
    x = 364,286,596,892.98/676,628.40
  6. Step 6: Final answer
    x = 538,385.02

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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.