Home / 766,505.92-1,057,810.86-426,974.32

Finding the Fourth Proportional to 766,505.92, 1,057,810.86 and 426,974.32

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Solution

The fourth proportional to 766,505.92, 1,057,810.86 and 426,974.32 is: 589,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,505.92 : 1,057,810.86 = 426,974.32 : x
  2. Step 2: Convert to fraction form
    766,505.92/1,057,810.86 = 426,974.32/x
  3. Step 3: Cross multiply
    766,505.92x = 1,057,810.86 × 426,974.32
  4. Step 4: Simplify right side
    766,505.92x = 451,658,072,637.12
  5. Step 5: Solve for x
    x = 451,658,072,637.12/766,505.92
  6. Step 6: Final answer
    x = 589,242.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.