Home / 1,137,776.92-1,570,127.36-628,479.30

Finding the Fourth Proportional to 1,137,776.92, 1,570,127.36 and 628,479.30

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Solution

The fourth proportional to 1,137,776.92, 1,570,127.36 and 628,479.30 is: 867,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,776.92 : 1,570,127.36 = 628,479.30 : x
  2. Step 2: Convert to fraction form
    1,137,776.92/1,570,127.36 = 628,479.30/x
  3. Step 3: Cross multiply
    1,137,776.92x = 1,570,127.36 × 628,479.30
  4. Step 4: Simplify right side
    1,137,776.92x = 986,792,544,123.65
  5. Step 5: Solve for x
    x = 986,792,544,123.65/1,137,776.92
  6. Step 6: Final answer
    x = 867,298.79

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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.