Home / 469,921.47-648,474.26-255,056.93

Finding the Fourth Proportional to 469,921.47, 648,474.26 and 255,056.93

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Solution

The fourth proportional to 469,921.47, 648,474.26 and 255,056.93 is: 351,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,921.47 : 648,474.26 = 255,056.93 : x
  2. Step 2: Convert to fraction form
    469,921.47/648,474.26 = 255,056.93/x
  3. Step 3: Cross multiply
    469,921.47x = 648,474.26 × 255,056.93
  4. Step 4: Simplify right side
    469,921.47x = 165,397,849,421.97
  5. Step 5: Solve for x
    x = 165,397,849,421.97/469,921.47
  6. Step 6: Final answer
    x = 351,969.13

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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.