Home / 1,427,127.72-2,139,193.08-480,169.68

Finding the Fourth Proportional to 1,427,127.72, 2,139,193.08 and 480,169.68

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Solution

The fourth proportional to 1,427,127.72, 2,139,193.08 and 480,169.68 is: 719,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,127.72 : 2,139,193.08 = 480,169.68 : x
  2. Step 2: Convert to fraction form
    1,427,127.72/2,139,193.08 = 480,169.68/x
  3. Step 3: Cross multiply
    1,427,127.72x = 2,139,193.08 × 480,169.68
  4. Step 4: Simplify right side
    1,427,127.72x = 1,027,175,656,681.81
  5. Step 5: Solve for x
    x = 1,027,175,656,681.81/1,427,127.72
  6. Step 6: Final answer
    x = 719,750.34

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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.