Home / 900,821.94-1,243,584.35-518,774.91

Finding the Fourth Proportional to 900,821.94, 1,243,584.35 and 518,774.91

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Solution

The fourth proportional to 900,821.94, 1,243,584.35 and 518,774.91 is: 716,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,821.94 : 1,243,584.35 = 518,774.91 : x
  2. Step 2: Convert to fraction form
    900,821.94/1,243,584.35 = 518,774.91/x
  3. Step 3: Cross multiply
    900,821.94x = 1,243,584.35 × 518,774.91
  4. Step 4: Simplify right side
    900,821.94x = 645,140,356,654.78
  5. Step 5: Solve for x
    x = 645,140,356,654.78/900,821.94
  6. Step 6: Final answer
    x = 716,168.57

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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.