Home / 1,931,315.64-2,896,639.38-511,392.12

Finding the Fourth Proportional to 1,931,315.64, 2,896,639.38 and 511,392.12

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Solution

The fourth proportional to 1,931,315.64, 2,896,639.38 and 511,392.12 is: 766,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,315.64 : 2,896,639.38 = 511,392.12 : x
  2. Step 2: Convert to fraction form
    1,931,315.64/2,896,639.38 = 511,392.12/x
  3. Step 3: Cross multiply
    1,931,315.64x = 2,896,639.38 × 511,392.12
  4. Step 4: Simplify right side
    1,931,315.64x = 1,481,318,553,413.69
  5. Step 5: Solve for x
    x = 1,481,318,553,413.69/1,931,315.64
  6. Step 6: Final answer
    x = 766,999.72

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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.