Home / 692,007.78-1,037,892-312,840.36

Finding the Fourth Proportional to 692,007.78, 1,037,892 and 312,840.36

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Solution

The fourth proportional to 692,007.78, 1,037,892 and 312,840.36 is: 469,206.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,007.78 : 1,037,892 = 312,840.36 : x
  2. Step 2: Convert to fraction form
    692,007.78/1,037,892 = 312,840.36/x
  3. Step 3: Cross multiply
    692,007.78x = 1,037,892 × 312,840.36
  4. Step 4: Simplify right side
    692,007.78x = 324,694,506,921.12
  5. Step 5: Solve for x
    x = 324,694,506,921.12/692,007.78
  6. Step 6: Final answer
    x = 469,206.44

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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.