Home / 696,999.50-1,045,078.61-312,678.29

Finding the Fourth Proportional to 696,999.50, 1,045,078.61 and 312,678.29

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Solution

The fourth proportional to 696,999.50, 1,045,078.61 and 312,678.29 is: 468,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,999.50 : 1,045,078.61 = 312,678.29 : x
  2. Step 2: Convert to fraction form
    696,999.50/1,045,078.61 = 312,678.29/x
  3. Step 3: Cross multiply
    696,999.50x = 1,045,078.61 × 312,678.29
  4. Step 4: Simplify right side
    696,999.50x = 326,773,387,464.98
  5. Step 5: Solve for x
    x = 326,773,387,464.98/696,999.50
  6. Step 6: Final answer
    x = 468,828.73

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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.