Home / 913,387.34-1,370,385.29-306,235.74

Finding the Fourth Proportional to 913,387.34, 1,370,385.29 and 306,235.74

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Solution

The fourth proportional to 913,387.34, 1,370,385.29 and 306,235.74 is: 459,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,387.34 : 1,370,385.29 = 306,235.74 : x
  2. Step 2: Convert to fraction form
    913,387.34/1,370,385.29 = 306,235.74/x
  3. Step 3: Cross multiply
    913,387.34x = 1,370,385.29 × 306,235.74
  4. Step 4: Simplify right side
    913,387.34x = 419,660,951,837.09
  5. Step 5: Solve for x
    x = 419,660,951,837.09/913,387.34
  6. Step 6: Final answer
    x = 459,455.63

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1.5x scale

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.