Home / 1,178,118.10-1,625,289.60-742,270.87

Finding the Fourth Proportional to 1,178,118.10, 1,625,289.60 and 742,270.87

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Solution

The fourth proportional to 1,178,118.10, 1,625,289.60 and 742,270.87 is: 1,024,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,118.10 : 1,625,289.60 = 742,270.87 : x
  2. Step 2: Convert to fraction form
    1,178,118.10/1,625,289.60 = 742,270.87/x
  3. Step 3: Cross multiply
    1,178,118.10x = 1,625,289.60 × 742,270.87
  4. Step 4: Simplify right side
    1,178,118.10x = 1,206,405,125,393.95
  5. Step 5: Solve for x
    x = 1,206,405,125,393.95/1,178,118.10
  6. Step 6: Final answer
    x = 1,024,010.35

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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.