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Finding the Fourth Proportional to 459,020, 633,433.92 and 255,070.28

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Solution

The fourth proportional to 459,020, 633,433.92 and 255,070.28 is: 351,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,020 : 633,433.92 = 255,070.28 : x
  2. Step 2: Convert to fraction form
    459,020/633,433.92 = 255,070.28/x
  3. Step 3: Cross multiply
    459,020x = 633,433.92 × 255,070.28
  4. Step 4: Simplify right side
    459,020x = 161,570,167,335.90
  5. Step 5: Solve for x
    x = 161,570,167,335.90/459,020
  6. Step 6: Final answer
    x = 351,989.38

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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.