Home / 1,578,679.36-2,178,533.28-863,272

Finding the Fourth Proportional to 1,578,679.36, 2,178,533.28 and 863,272

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Solution

The fourth proportional to 1,578,679.36, 2,178,533.28 and 863,272 is: 1,191,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,679.36 : 2,178,533.28 = 863,272 : x
  2. Step 2: Convert to fraction form
    1,578,679.36/2,178,533.28 = 863,272/x
  3. Step 3: Cross multiply
    1,578,679.36x = 2,178,533.28 × 863,272
  4. Step 4: Simplify right side
    1,578,679.36x = 1,880,666,781,692.16
  5. Step 5: Solve for x
    x = 1,880,666,781,692.16/1,578,679.36
  6. Step 6: Final answer
    x = 1,191,291.17

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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.