Home / 867,840.11-1,296,482.40-561,740.52

Finding the Fourth Proportional to 867,840.11, 1,296,482.40 and 561,740.52

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Solution

The fourth proportional to 867,840.11, 1,296,482.40 and 561,740.52 is: 839,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,840.11 : 1,296,482.40 = 561,740.52 : x
  2. Step 2: Convert to fraction form
    867,840.11/1,296,482.40 = 561,740.52/x
  3. Step 3: Cross multiply
    867,840.11x = 1,296,482.40 × 561,740.52
  4. Step 4: Simplify right side
    867,840.11x = 728,286,697,546.85
  5. Step 5: Solve for x
    x = 728,286,697,546.85/867,840.11
  6. Step 6: Final answer
    x = 839,194.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.