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Finding the Fourth Proportional to 507,626.68, 700,524.28 and 281,272.20

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Solution

The fourth proportional to 507,626.68, 700,524.28 and 281,272.20 is: 388,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,626.68 : 700,524.28 = 281,272.20 : x
  2. Step 2: Convert to fraction form
    507,626.68/700,524.28 = 281,272.20/x
  3. Step 3: Cross multiply
    507,626.68x = 700,524.28 × 281,272.20
  4. Step 4: Simplify right side
    507,626.68x = 197,038,005,389.02
  5. Step 5: Solve for x
    x = 197,038,005,389.02/507,626.68
  6. Step 6: Final answer
    x = 388,155.34

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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.