Home / 554,307.80-831,680.40-217,291.10

Finding the Fourth Proportional to 554,307.80, 831,680.40 and 217,291.10

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Solution

The fourth proportional to 554,307.80, 831,680.40 and 217,291.10 is: 326,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,307.80 : 831,680.40 = 217,291.10 : x
  2. Step 2: Convert to fraction form
    554,307.80/831,680.40 = 217,291.10/x
  3. Step 3: Cross multiply
    554,307.80x = 831,680.40 × 217,291.10
  4. Step 4: Simplify right side
    554,307.80x = 180,716,748,964.44
  5. Step 5: Solve for x
    x = 180,716,748,964.44/554,307.80
  6. Step 6: Final answer
    x = 326,022.38

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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.