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Finding the Fourth Proportional to 555,705.18, 766,591.29 and 351,411.84

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Solution

The fourth proportional to 555,705.18, 766,591.29 and 351,411.84 is: 484,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,705.18 : 766,591.29 = 351,411.84 : x
  2. Step 2: Convert to fraction form
    555,705.18/766,591.29 = 351,411.84/x
  3. Step 3: Cross multiply
    555,705.18x = 766,591.29 × 351,411.84
  4. Step 4: Simplify right side
    555,705.18x = 269,389,255,746.87
  5. Step 5: Solve for x
    x = 269,389,255,746.87/555,705.18
  6. Step 6: Final answer
    x = 484,770.10

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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.