Home / 847,534.21-1,271,294.41-342,087.42

Finding the Fourth Proportional to 847,534.21, 1,271,294.41 and 342,087.42

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Solution

The fourth proportional to 847,534.21, 1,271,294.41 and 342,087.42 is: 513,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,534.21 : 1,271,294.41 = 342,087.42 : x
  2. Step 2: Convert to fraction form
    847,534.21/1,271,294.41 = 342,087.42/x
  3. Step 3: Cross multiply
    847,534.21x = 1,271,294.41 × 342,087.42
  4. Step 4: Simplify right side
    847,534.21x = 434,893,824,777.32
  5. Step 5: Solve for x
    x = 434,893,824,777.32/847,534.21
  6. Step 6: Final answer
    x = 513,128.34

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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.