Home / 648,932.70-973,399.05-424,983.90

Finding the Fourth Proportional to 648,932.70, 973,399.05 and 424,983.90

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Solution

The fourth proportional to 648,932.70, 973,399.05 and 424,983.90 is: 637,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,932.70 : 973,399.05 = 424,983.90 : x
  2. Step 2: Convert to fraction form
    648,932.70/973,399.05 = 424,983.90/x
  3. Step 3: Cross multiply
    648,932.70x = 973,399.05 × 424,983.90
  4. Step 4: Simplify right side
    648,932.70x = 413,678,924,525.30
  5. Step 5: Solve for x
    x = 413,678,924,525.30/648,932.70
  6. Step 6: Final answer
    x = 637,475.85

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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.