Home / 743,528.20-1,114,061.10-427,433.80

Finding the Fourth Proportional to 743,528.20, 1,114,061.10 and 427,433.80

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Solution

The fourth proportional to 743,528.20, 1,114,061.10 and 427,433.80 is: 640,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,528.20 : 1,114,061.10 = 427,433.80 : x
  2. Step 2: Convert to fraction form
    743,528.20/1,114,061.10 = 427,433.80/x
  3. Step 3: Cross multiply
    743,528.20x = 1,114,061.10 × 427,433.80
  4. Step 4: Simplify right side
    743,528.20x = 476,187,369,405.18
  5. Step 5: Solve for x
    x = 476,187,369,405.18/743,528.20
  6. Step 6: Final answer
    x = 640,442.92

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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.