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Finding the Fourth Proportional to 554,091.50, 831,510.92 and 217,089.88

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Solution

The fourth proportional to 554,091.50, 831,510.92 and 217,089.88 is: 325,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,091.50 : 831,510.92 = 217,089.88 : x
  2. Step 2: Convert to fraction form
    554,091.50/831,510.92 = 217,089.88/x
  3. Step 3: Cross multiply
    554,091.50x = 831,510.92 × 217,089.88
  4. Step 4: Simplify right side
    554,091.50x = 180,512,605,841.49
  5. Step 5: Solve for x
    x = 180,512,605,841.49/554,091.50
  6. Step 6: Final answer
    x = 325,781.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.