Home / 554,402.20-831,245.76-217,476.90

Finding the Fourth Proportional to 554,402.20, 831,245.76 and 217,476.90

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Solution

The fourth proportional to 554,402.20, 831,245.76 and 217,476.90 is: 326,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,402.20 : 831,245.76 = 217,476.90 : x
  2. Step 2: Convert to fraction form
    554,402.20/831,245.76 = 217,476.90/x
  3. Step 3: Cross multiply
    554,402.20x = 831,245.76 × 217,476.90
  4. Step 4: Simplify right side
    554,402.20x = 180,776,751,022.94
  5. Step 5: Solve for x
    x = 180,776,751,022.94/554,402.20
  6. Step 6: Final answer
    x = 326,075.10

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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.