Home / 553,247.04-763,553.67-311,576.85

Finding the Fourth Proportional to 553,247.04, 763,553.67 and 311,576.85

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Solution

The fourth proportional to 553,247.04, 763,553.67 and 311,576.85 is: 430,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,247.04 : 763,553.67 = 311,576.85 : x
  2. Step 2: Convert to fraction form
    553,247.04/763,553.67 = 311,576.85/x
  3. Step 3: Cross multiply
    553,247.04x = 763,553.67 × 311,576.85
  4. Step 4: Simplify right side
    553,247.04x = 237,905,648,999.45
  5. Step 5: Solve for x
    x = 237,905,648,999.45/553,247.04
  6. Step 6: Final answer
    x = 430,017.03

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1.5x scale

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.