Home / 641,670.11-962,172.92-342,070.22

Finding the Fourth Proportional to 641,670.11, 962,172.92 and 342,070.22

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Solution

The fourth proportional to 641,670.11, 962,172.92 and 342,070.22 is: 512,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,670.11 : 962,172.92 = 342,070.22 : x
  2. Step 2: Convert to fraction form
    641,670.11/962,172.92 = 342,070.22/x
  3. Step 3: Cross multiply
    641,670.11x = 962,172.92 × 342,070.22
  4. Step 4: Simplify right side
    641,670.11x = 329,130,695,901.23
  5. Step 5: Solve for x
    x = 329,130,695,901.23/641,670.11
  6. Step 6: Final answer
    x = 512,928.21

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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.