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Finding the Fourth Proportional to 508,261.23, 701,409.86 and 278,830.23

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Solution

The fourth proportional to 508,261.23, 701,409.86 and 278,830.23 is: 384,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,261.23 : 701,409.86 = 278,830.23 : x
  2. Step 2: Convert to fraction form
    508,261.23/701,409.86 = 278,830.23/x
  3. Step 3: Cross multiply
    508,261.23x = 701,409.86 × 278,830.23
  4. Step 4: Simplify right side
    508,261.23x = 195,574,271,193.92
  5. Step 5: Solve for x
    x = 195,574,271,193.92/508,261.23
  6. Step 6: Final answer
    x = 384,790.85

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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.