Home / 782,348.19-1,173,522.30-427,168.45

Finding the Fourth Proportional to 782,348.19, 1,173,522.30 and 427,168.45

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Solution

The fourth proportional to 782,348.19, 1,173,522.30 and 427,168.45 is: 640,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,348.19 : 1,173,522.30 = 427,168.45 : x
  2. Step 2: Convert to fraction form
    782,348.19/1,173,522.30 = 427,168.45/x
  3. Step 3: Cross multiply
    782,348.19x = 1,173,522.30 × 427,168.45
  4. Step 4: Simplify right side
    782,348.19x = 501,291,701,931.44
  5. Step 5: Solve for x
    x = 501,291,701,931.44/782,348.19
  6. Step 6: Final answer
    x = 640,752.68

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Double scale
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Similar ratio
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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.