Home / 1,178,120.10-1,625,292.36-742,272.87

Finding the Fourth Proportional to 1,178,120.10, 1,625,292.36 and 742,272.87

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Solution

The fourth proportional to 1,178,120.10, 1,625,292.36 and 742,272.87 is: 1,024,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,120.10 : 1,625,292.36 = 742,272.87 : x
  2. Step 2: Convert to fraction form
    1,178,120.10/1,625,292.36 = 742,272.87/x
  3. Step 3: Cross multiply
    1,178,120.10x = 1,625,292.36 × 742,272.87
  4. Step 4: Simplify right side
    1,178,120.10x = 1,206,410,424,646.27
  5. Step 5: Solve for x
    x = 1,206,410,424,646.27/1,178,120.10
  6. Step 6: Final answer
    x = 1,024,013.11

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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.