Home / 927,089.46-1,390,849.86-287,359.26

Finding the Fourth Proportional to 927,089.46, 1,390,849.86 and 287,359.26

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Solution

The fourth proportional to 927,089.46, 1,390,849.86 and 287,359.26 is: 431,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,089.46 : 1,390,849.86 = 287,359.26 : x
  2. Step 2: Convert to fraction form
    927,089.46/1,390,849.86 = 287,359.26/x
  3. Step 3: Cross multiply
    927,089.46x = 1,390,849.86 × 287,359.26
  4. Step 4: Simplify right side
    927,089.46x = 399,673,586,540.70
  5. Step 5: Solve for x
    x = 399,673,586,540.70/927,089.46
  6. Step 6: Final answer
    x = 431,105.74

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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.