Home / 870,815.28-1,201,901.91-503,308.02

Finding the Fourth Proportional to 870,815.28, 1,201,901.91 and 503,308.02

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Solution

The fourth proportional to 870,815.28, 1,201,901.91 and 503,308.02 is: 694,667.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,815.28 : 1,201,901.91 = 503,308.02 : x
  2. Step 2: Convert to fraction form
    870,815.28/1,201,901.91 = 503,308.02/x
  3. Step 3: Cross multiply
    870,815.28x = 1,201,901.91 × 503,308.02
  4. Step 4: Simplify right side
    870,815.28x = 604,926,873,176.05
  5. Step 5: Solve for x
    x = 604,926,873,176.05/870,815.28
  6. Step 6: Final answer
    x = 694,667.27

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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.