Home / 1,274,585-1,911,877.50-388,121

Finding the Fourth Proportional to 1,274,585, 1,911,877.50 and 388,121

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Solution

The fourth proportional to 1,274,585, 1,911,877.50 and 388,121 is: 582,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,585 : 1,911,877.50 = 388,121 : x
  2. Step 2: Convert to fraction form
    1,274,585/1,911,877.50 = 388,121/x
  3. Step 3: Cross multiply
    1,274,585x = 1,911,877.50 × 388,121
  4. Step 4: Simplify right side
    1,274,585x = 742,039,807,177.50
  5. Step 5: Solve for x
    x = 742,039,807,177.50/1,274,585
  6. Step 6: Final answer
    x = 582,181.50

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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.