Home / 469,928.79-648,484.28-255,064.23

Finding the Fourth Proportional to 469,928.79, 648,484.28 and 255,064.23

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Solution

The fourth proportional to 469,928.79, 648,484.28 and 255,064.23 is: 351,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,928.79 : 648,484.28 = 255,064.23 : x
  2. Step 2: Convert to fraction form
    469,928.79/648,484.28 = 255,064.23/x
  3. Step 3: Cross multiply
    469,928.79x = 648,484.28 × 255,064.23
  4. Step 4: Simplify right side
    469,928.79x = 165,405,139,027.56
  5. Step 5: Solve for x
    x = 165,405,139,027.56/469,928.79
  6. Step 6: Final answer
    x = 351,979.16

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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.