Home / 847,190.70-1,271,770.20-510,611.40

Finding the Fourth Proportional to 847,190.70, 1,271,770.20 and 510,611.40

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Solution

The fourth proportional to 847,190.70, 1,271,770.20 and 510,611.40 is: 766,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,190.70 : 1,271,770.20 = 510,611.40 : x
  2. Step 2: Convert to fraction form
    847,190.70/1,271,770.20 = 510,611.40/x
  3. Step 3: Cross multiply
    847,190.70x = 1,271,770.20 × 510,611.40
  4. Step 4: Simplify right side
    847,190.70x = 649,380,362,300.28
  5. Step 5: Solve for x
    x = 649,380,362,300.28/847,190.70
  6. Step 6: Final answer
    x = 766,510.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.