Home / 878,156.51-1,211,722.13-496,043.87

Finding the Fourth Proportional to 878,156.51, 1,211,722.13 and 496,043.87

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Solution

The fourth proportional to 878,156.51, 1,211,722.13 and 496,043.87 is: 684,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,156.51 : 1,211,722.13 = 496,043.87 : x
  2. Step 2: Convert to fraction form
    878,156.51/1,211,722.13 = 496,043.87/x
  3. Step 3: Cross multiply
    878,156.51x = 1,211,722.13 × 496,043.87
  4. Step 4: Simplify right side
    878,156.51x = 601,067,329,911.34
  5. Step 5: Solve for x
    x = 601,067,329,911.34/878,156.51
  6. Step 6: Final answer
    x = 684,464.93

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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.