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Finding the Fourth Proportional to 507,409.26, 700,247.86 and 281,054.76

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Solution

The fourth proportional to 507,409.26, 700,247.86 and 281,054.76 is: 387,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,409.26 : 700,247.86 = 281,054.76 : x
  2. Step 2: Convert to fraction form
    507,409.26/700,247.86 = 281,054.76/x
  3. Step 3: Cross multiply
    507,409.26x = 700,247.86 × 281,054.76
  4. Step 4: Simplify right side
    507,409.26x = 196,807,994,232.81
  5. Step 5: Solve for x
    x = 196,807,994,232.81/507,409.26
  6. Step 6: Final answer
    x = 387,868.35

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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.