Home / 1,098,030.28-1,647,178.30-387,913

Finding the Fourth Proportional to 1,098,030.28, 1,647,178.30 and 387,913

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Solution

The fourth proportional to 1,098,030.28, 1,647,178.30 and 387,913 is: 581,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,030.28 : 1,647,178.30 = 387,913 : x
  2. Step 2: Convert to fraction form
    1,098,030.28/1,647,178.30 = 387,913/x
  3. Step 3: Cross multiply
    1,098,030.28x = 1,647,178.30 × 387,913
  4. Step 4: Simplify right side
    1,098,030.28x = 638,961,875,887.90
  5. Step 5: Solve for x
    x = 638,961,875,887.90/1,098,030.28
  6. Step 6: Final answer
    x = 581,916.44

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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.