Home / 615,942.08-922,208.88-315,775.52

Finding the Fourth Proportional to 615,942.08, 922,208.88 and 315,775.52

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Solution

The fourth proportional to 615,942.08, 922,208.88 and 315,775.52 is: 472,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,942.08 : 922,208.88 = 315,775.52 : x
  2. Step 2: Convert to fraction form
    615,942.08/922,208.88 = 315,775.52/x
  3. Step 3: Cross multiply
    615,942.08x = 922,208.88 × 315,775.52
  4. Step 4: Simplify right side
    615,942.08x = 291,210,988,630.62
  5. Step 5: Solve for x
    x = 291,210,988,630.62/615,942.08
  6. Step 6: Final answer
    x = 472,789.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.