Home / 553,320.23-763,596.15-311,611.16

Finding the Fourth Proportional to 553,320.23, 763,596.15 and 311,611.16

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Solution

The fourth proportional to 553,320.23, 763,596.15 and 311,611.16 is: 430,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,320.23 : 763,596.15 = 311,611.16 : x
  2. Step 2: Convert to fraction form
    553,320.23/763,596.15 = 311,611.16/x
  3. Step 3: Cross multiply
    553,320.23x = 763,596.15 × 311,611.16
  4. Step 4: Simplify right side
    553,320.23x = 237,945,082,813.48
  5. Step 5: Solve for x
    x = 237,945,082,813.48/553,320.23
  6. Step 6: Final answer
    x = 430,031.42

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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.