Home / 714,551.28-1,071,011.58-287,813.97

Finding the Fourth Proportional to 714,551.28, 1,071,011.58 and 287,813.97

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Solution

The fourth proportional to 714,551.28, 1,071,011.58 and 287,813.97 is: 431,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,551.28 : 1,071,011.58 = 287,813.97 : x
  2. Step 2: Convert to fraction form
    714,551.28/1,071,011.58 = 287,813.97/x
  3. Step 3: Cross multiply
    714,551.28x = 1,071,011.58 × 287,813.97
  4. Step 4: Simplify right side
    714,551.28x = 308,252,094,755.77
  5. Step 5: Solve for x
    x = 308,252,094,755.77/714,551.28
  6. Step 6: Final answer
    x = 431,392.54

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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.