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Finding the Fourth Proportional to 507,487.32, 700,355.28 and 281,118.24

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Solution

The fourth proportional to 507,487.32, 700,355.28 and 281,118.24 is: 387,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,487.32 : 700,355.28 = 281,118.24 : x
  2. Step 2: Convert to fraction form
    507,487.32/700,355.28 = 281,118.24/x
  3. Step 3: Cross multiply
    507,487.32x = 700,355.28 × 281,118.24
  4. Step 4: Simplify right side
    507,487.32x = 196,882,643,688.31
  5. Step 5: Solve for x
    x = 196,882,643,688.31/507,487.32
  6. Step 6: Final answer
    x = 387,955.79

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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.