Home / 1,340,078.39-2,009,228.98-487,048.76

Finding the Fourth Proportional to 1,340,078.39, 2,009,228.98 and 487,048.76

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Solution

The fourth proportional to 1,340,078.39, 2,009,228.98 and 487,048.76 is: 730,250.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,078.39 : 2,009,228.98 = 487,048.76 : x
  2. Step 2: Convert to fraction form
    1,340,078.39/2,009,228.98 = 487,048.76/x
  3. Step 3: Cross multiply
    1,340,078.39x = 2,009,228.98 × 487,048.76
  4. Step 4: Simplify right side
    1,340,078.39x = 978,592,483,265.07
  5. Step 5: Solve for x
    x = 978,592,483,265.07/1,340,078.39
  6. Step 6: Final answer
    x = 730,250.18

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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.