Home / 811,847.58-1,120,900.95-506,046.30

Finding the Fourth Proportional to 811,847.58, 1,120,900.95 and 506,046.30

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Solution

The fourth proportional to 811,847.58, 1,120,900.95 and 506,046.30 is: 698,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,847.58 : 1,120,900.95 = 506,046.30 : x
  2. Step 2: Convert to fraction form
    811,847.58/1,120,900.95 = 506,046.30/x
  3. Step 3: Cross multiply
    811,847.58x = 1,120,900.95 × 506,046.30
  4. Step 4: Simplify right side
    811,847.58x = 567,227,778,413.99
  5. Step 5: Solve for x
    x = 567,227,778,413.99/811,847.58
  6. Step 6: Final answer
    x = 698,687.53

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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.