Home / 1,132,602.75-1,562,639.85-642,491.60

Finding the Fourth Proportional to 1,132,602.75, 1,562,639.85 and 642,491.60

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Solution

The fourth proportional to 1,132,602.75, 1,562,639.85 and 642,491.60 is: 886,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,602.75 : 1,562,639.85 = 642,491.60 : x
  2. Step 2: Convert to fraction form
    1,132,602.75/1,562,639.85 = 642,491.60/x
  3. Step 3: Cross multiply
    1,132,602.75x = 1,562,639.85 × 642,491.60
  4. Step 4: Simplify right side
    1,132,602.75x = 1,003,982,969,637.06
  5. Step 5: Solve for x
    x = 1,003,982,969,637.06/1,132,602.75
  6. Step 6: Final answer
    x = 886,438.75

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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.