Home / 467,534.81-645,046.12-286,057.55

Finding the Fourth Proportional to 467,534.81, 645,046.12 and 286,057.55

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Solution

The fourth proportional to 467,534.81, 645,046.12 and 286,057.55 is: 394,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,534.81 : 645,046.12 = 286,057.55 : x
  2. Step 2: Convert to fraction form
    467,534.81/645,046.12 = 286,057.55/x
  3. Step 3: Cross multiply
    467,534.81x = 645,046.12 × 286,057.55
  4. Step 4: Simplify right side
    467,534.81x = 184,520,312,724.21
  5. Step 5: Solve for x
    x = 184,520,312,724.21/467,534.81
  6. Step 6: Final answer
    x = 394,666.47

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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.