Home / 743,521.20-1,114,050.60-427,426.80

Finding the Fourth Proportional to 743,521.20, 1,114,050.60 and 427,426.80

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Solution

The fourth proportional to 743,521.20, 1,114,050.60 and 427,426.80 is: 640,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,521.20 : 1,114,050.60 = 427,426.80 : x
  2. Step 2: Convert to fraction form
    743,521.20/1,114,050.60 = 427,426.80/x
  3. Step 3: Cross multiply
    743,521.20x = 1,114,050.60 × 427,426.80
  4. Step 4: Simplify right side
    743,521.20x = 476,175,082,996.08
  5. Step 5: Solve for x
    x = 476,175,082,996.08/743,521.20
  6. Step 6: Final answer
    x = 640,432.42

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Double scale
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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.