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Finding the Fourth Proportional to 554,963.40, 832,080.60 and 217,800.90

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Solution

The fourth proportional to 554,963.40, 832,080.60 and 217,800.90 is: 326,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,963.40 : 832,080.60 = 217,800.90 : x
  2. Step 2: Convert to fraction form
    554,963.40/832,080.60 = 217,800.90/x
  3. Step 3: Cross multiply
    554,963.40x = 832,080.60 × 217,800.90
  4. Step 4: Simplify right side
    554,963.40x = 181,227,903,552.54
  5. Step 5: Solve for x
    x = 181,227,903,552.54/554,963.40
  6. Step 6: Final answer
    x = 326,558.30

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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.