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Finding the Fourth Proportional to 507,900.36, 700,855.38 and 281,526.60

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Solution

The fourth proportional to 507,900.36, 700,855.38 and 281,526.60 is: 388,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,900.36 : 700,855.38 = 281,526.60 : x
  2. Step 2: Convert to fraction form
    507,900.36/700,855.38 = 281,526.60/x
  3. Step 3: Cross multiply
    507,900.36x = 700,855.38 × 281,526.60
  4. Step 4: Simplify right side
    507,900.36x = 197,309,432,223.11
  5. Step 5: Solve for x
    x = 197,309,432,223.11/507,900.36
  6. Step 6: Final answer
    x = 388,480.59

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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.