Home / 510,852.12-705,031.30-281,432.92

Finding the Fourth Proportional to 510,852.12, 705,031.30 and 281,432.92

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Solution

The fourth proportional to 510,852.12, 705,031.30 and 281,432.92 is: 388,407.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,852.12 : 705,031.30 = 281,432.92 : x
  2. Step 2: Convert to fraction form
    510,852.12/705,031.30 = 281,432.92/x
  3. Step 3: Cross multiply
    510,852.12x = 705,031.30 × 281,432.92
  4. Step 4: Simplify right side
    510,852.12x = 198,419,017,450.40
  5. Step 5: Solve for x
    x = 198,419,017,450.40/510,852.12
  6. Step 6: Final answer
    x = 388,407.94

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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.