Home / 388,965.42-583,448.22-122,746.68

Finding the Fourth Proportional to 388,965.42, 583,448.22 and 122,746.68

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Solution

The fourth proportional to 388,965.42, 583,448.22 and 122,746.68 is: 184,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,965.42 : 583,448.22 = 122,746.68 : x
  2. Step 2: Convert to fraction form
    388,965.42/583,448.22 = 122,746.68/x
  3. Step 3: Cross multiply
    388,965.42x = 583,448.22 × 122,746.68
  4. Step 4: Simplify right side
    388,965.42x = 71,616,331,956.91
  5. Step 5: Solve for x
    x = 71,616,331,956.91/388,965.42
  6. Step 6: Final answer
    x = 184,120.05

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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.