Home / 774,814.80-1,158,822.76-690,023.61

Finding the Fourth Proportional to 774,814.80, 1,158,822.76 and 690,023.61

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Solution

The fourth proportional to 774,814.80, 1,158,822.76 and 690,023.61 is: 1,032,007.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,814.80 : 1,158,822.76 = 690,023.61 : x
  2. Step 2: Convert to fraction form
    774,814.80/1,158,822.76 = 690,023.61/x
  3. Step 3: Cross multiply
    774,814.80x = 1,158,822.76 × 690,023.61
  4. Step 4: Simplify right side
    774,814.80x = 799,615,064,205.36
  5. Step 5: Solve for x
    x = 799,615,064,205.36/774,814.80
  6. Step 6: Final answer
    x = 1,032,007.99

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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.