Home / 862,667.58-1,190,569.84-518,614.89

Finding the Fourth Proportional to 862,667.58, 1,190,569.84 and 518,614.89

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Solution

The fourth proportional to 862,667.58, 1,190,569.84 and 518,614.89 is: 715,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,667.58 : 1,190,569.84 = 518,614.89 : x
  2. Step 2: Convert to fraction form
    862,667.58/1,190,569.84 = 518,614.89/x
  3. Step 3: Cross multiply
    862,667.58x = 1,190,569.84 × 518,614.89
  4. Step 4: Simplify right side
    862,667.58x = 617,447,246,608.92
  5. Step 5: Solve for x
    x = 617,447,246,608.92/862,667.58
  6. Step 6: Final answer
    x = 715,741.80

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1.5x scale

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.