Home / 836,826.68-1,155,376.94-642,888.96

Finding the Fourth Proportional to 836,826.68, 1,155,376.94 and 642,888.96

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Solution

The fourth proportional to 836,826.68, 1,155,376.94 and 642,888.96 is: 887,614.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,826.68 : 1,155,376.94 = 642,888.96 : x
  2. Step 2: Convert to fraction form
    836,826.68/1,155,376.94 = 642,888.96/x
  3. Step 3: Cross multiply
    836,826.68x = 1,155,376.94 × 642,888.96
  4. Step 4: Simplify right side
    836,826.68x = 742,779,079,364.58
  5. Step 5: Solve for x
    x = 742,779,079,364.58/836,826.68
  6. Step 6: Final answer
    x = 887,614.00

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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.