Home / 467,834.16-645,617.78-286,479.91

Finding the Fourth Proportional to 467,834.16, 645,617.78 and 286,479.91

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Solution

The fourth proportional to 467,834.16, 645,617.78 and 286,479.91 is: 395,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,834.16 : 645,617.78 = 286,479.91 : x
  2. Step 2: Convert to fraction form
    467,834.16/645,617.78 = 286,479.91/x
  3. Step 3: Cross multiply
    467,834.16x = 645,617.78 × 286,479.91
  4. Step 4: Simplify right side
    467,834.16x = 184,956,525,370.66
  5. Step 5: Solve for x
    x = 184,956,525,370.66/467,834.16
  6. Step 6: Final answer
    x = 395,346.35

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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.