Home / 1,275,932.79-1,913,835.54-477,155.61

Finding the Fourth Proportional to 1,275,932.79, 1,913,835.54 and 477,155.61

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Solution

The fourth proportional to 1,275,932.79, 1,913,835.54 and 477,155.61 is: 715,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,932.79 : 1,913,835.54 = 477,155.61 : x
  2. Step 2: Convert to fraction form
    1,275,932.79/1,913,835.54 = 477,155.61/x
  3. Step 3: Cross multiply
    1,275,932.79x = 1,913,835.54 × 477,155.61
  4. Step 4: Simplify right side
    1,275,932.79x = 913,197,364,528.38
  5. Step 5: Solve for x
    x = 913,197,364,528.38/1,275,932.79
  6. Step 6: Final answer
    x = 715,709.61

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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.