Home / 724,368.83-1,086,547.84-218,928.83

Finding the Fourth Proportional to 724,368.83, 1,086,547.84 and 218,928.83

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Solution

The fourth proportional to 724,368.83, 1,086,547.84 and 218,928.83 is: 328,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,368.83 : 1,086,547.84 = 218,928.83 : x
  2. Step 2: Convert to fraction form
    724,368.83/1,086,547.84 = 218,928.83/x
  3. Step 3: Cross multiply
    724,368.83x = 1,086,547.84 × 218,928.83
  4. Step 4: Simplify right side
    724,368.83x = 237,876,641,370.17
  5. Step 5: Solve for x
    x = 237,876,641,370.17/724,368.83
  6. Step 6: Final answer
    x = 328,391.61

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1.5x scale

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.