Home / 1,008,143.36-1,391,438.72-578,713.60

Finding the Fourth Proportional to 1,008,143.36, 1,391,438.72 and 578,713.60

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Solution

The fourth proportional to 1,008,143.36, 1,391,438.72 and 578,713.60 is: 798,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,143.36 : 1,391,438.72 = 578,713.60 : x
  2. Step 2: Convert to fraction form
    1,008,143.36/1,391,438.72 = 578,713.60/x
  3. Step 3: Cross multiply
    1,008,143.36x = 1,391,438.72 × 578,713.60
  4. Step 4: Simplify right side
    1,008,143.36x = 805,244,510,830.59
  5. Step 5: Solve for x
    x = 805,244,510,830.59/1,008,143.36
  6. Step 6: Final answer
    x = 798,740.08

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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.