Home / 1,151,875.71-1,589,478.12-642,610.89

Finding the Fourth Proportional to 1,151,875.71, 1,589,478.12 and 642,610.89

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Solution

The fourth proportional to 1,151,875.71, 1,589,478.12 and 642,610.89 is: 886,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,875.71 : 1,589,478.12 = 642,610.89 : x
  2. Step 2: Convert to fraction form
    1,151,875.71/1,589,478.12 = 642,610.89/x
  3. Step 3: Cross multiply
    1,151,875.71x = 1,589,478.12 × 642,610.89
  4. Step 4: Simplify right side
    1,151,875.71x = 1,021,415,949,328.73
  5. Step 5: Solve for x
    x = 1,021,415,949,328.73/1,151,875.71
  6. Step 6: Final answer
    x = 886,741.46

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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.