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Finding the Fourth Proportional to 629,438.40, 946,490.40 and 526,795.20

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Solution

The fourth proportional to 629,438.40, 946,490.40 and 526,795.20 is: 792,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,438.40 : 946,490.40 = 526,795.20 : x
  2. Step 2: Convert to fraction form
    629,438.40/946,490.40 = 526,795.20/x
  3. Step 3: Cross multiply
    629,438.40x = 946,490.40 × 526,795.20
  4. Step 4: Simplify right side
    629,438.40x = 498,606,599,566.08
  5. Step 5: Solve for x
    x = 498,606,599,566.08/629,438.40
  6. Step 6: Final answer
    x = 792,145.19

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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.