Home / 1,057,695.40-1,587,450.30-427,061.80

Finding the Fourth Proportional to 1,057,695.40, 1,587,450.30 and 427,061.80

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Solution

The fourth proportional to 1,057,695.40, 1,587,450.30 and 427,061.80 is: 640,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,695.40 : 1,587,450.30 = 427,061.80 : x
  2. Step 2: Convert to fraction form
    1,057,695.40/1,587,450.30 = 427,061.80/x
  3. Step 3: Cross multiply
    1,057,695.40x = 1,587,450.30 × 427,061.80
  4. Step 4: Simplify right side
    1,057,695.40x = 677,939,382,528.54
  5. Step 5: Solve for x
    x = 677,939,382,528.54/1,057,695.40
  6. Step 6: Final answer
    x = 640,959.00

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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.