Home / 985,415.60-1,478,123.40-825,983.30

Finding the Fourth Proportional to 985,415.60, 1,478,123.40 and 825,983.30

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Solution

The fourth proportional to 985,415.60, 1,478,123.40 and 825,983.30 is: 1,238,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,415.60 : 1,478,123.40 = 825,983.30 : x
  2. Step 2: Convert to fraction form
    985,415.60/1,478,123.40 = 825,983.30/x
  3. Step 3: Cross multiply
    985,415.60x = 1,478,123.40 × 825,983.30
  4. Step 4: Simplify right side
    985,415.60x = 1,220,905,243,739.22
  5. Step 5: Solve for x
    x = 1,220,905,243,739.22/985,415.60
  6. Step 6: Final answer
    x = 1,238,974.95

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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.