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Finding the Fourth Proportional to 637,362.70, 956,986.29 and 425,450.90

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Solution

The fourth proportional to 637,362.70, 956,986.29 and 425,450.90 is: 638,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,362.70 : 956,986.29 = 425,450.90 : x
  2. Step 2: Convert to fraction form
    637,362.70/956,986.29 = 425,450.90/x
  3. Step 3: Cross multiply
    637,362.70x = 956,986.29 × 425,450.90
  4. Step 4: Simplify right side
    637,362.70x = 407,150,680,760.63
  5. Step 5: Solve for x
    x = 407,150,680,760.63/637,362.70
  6. Step 6: Final answer
    x = 638,805.32

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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.