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Finding the Fourth Proportional to 450,411.22, 621,792.51 and 259,387.71

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Solution

The fourth proportional to 450,411.22, 621,792.51 and 259,387.71 is: 358,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,411.22 : 621,792.51 = 259,387.71 : x
  2. Step 2: Convert to fraction form
    450,411.22/621,792.51 = 259,387.71/x
  3. Step 3: Cross multiply
    450,411.22x = 621,792.51 × 259,387.71
  4. Step 4: Simplify right side
    450,411.22x = 161,285,335,264.05
  5. Step 5: Solve for x
    x = 161,285,335,264.05/450,411.22
  6. Step 6: Final answer
    x = 358,084.63

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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.