Home / 809,715.90-1,214,573.85-748,890.30

Finding the Fourth Proportional to 809,715.90, 1,214,573.85 and 748,890.30

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Solution

The fourth proportional to 809,715.90, 1,214,573.85 and 748,890.30 is: 1,123,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,715.90 : 1,214,573.85 = 748,890.30 : x
  2. Step 2: Convert to fraction form
    809,715.90/1,214,573.85 = 748,890.30/x
  3. Step 3: Cross multiply
    809,715.90x = 1,214,573.85 × 748,890.30
  4. Step 4: Simplify right side
    809,715.90x = 909,582,574,898.66
  5. Step 5: Solve for x
    x = 909,582,574,898.66/809,715.90
  6. Step 6: Final answer
    x = 1,123,335.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.