Home / 808,123.95-1,212,191.96-358,723.98

Finding the Fourth Proportional to 808,123.95, 1,212,191.96 and 358,723.98

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Solution

The fourth proportional to 808,123.95, 1,212,191.96 and 358,723.98 is: 538,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,123.95 : 1,212,191.96 = 358,723.98 : x
  2. Step 2: Convert to fraction form
    808,123.95/1,212,191.96 = 358,723.98/x
  3. Step 3: Cross multiply
    808,123.95x = 1,212,191.96 × 358,723.98
  4. Step 4: Simplify right side
    808,123.95x = 434,842,322,621.58
  5. Step 5: Solve for x
    x = 434,842,322,621.58/808,123.95
  6. Step 6: Final answer
    x = 538,088.65

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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.