Home / 940,916.40-1,411,374.60-309,748.20

Finding the Fourth Proportional to 940,916.40, 1,411,374.60 and 309,748.20

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Solution

The fourth proportional to 940,916.40, 1,411,374.60 and 309,748.20 is: 464,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,916.40 : 1,411,374.60 = 309,748.20 : x
  2. Step 2: Convert to fraction form
    940,916.40/1,411,374.60 = 309,748.20/x
  3. Step 3: Cross multiply
    940,916.40x = 1,411,374.60 × 309,748.20
  4. Step 4: Simplify right side
    940,916.40x = 437,170,741,875.72
  5. Step 5: Solve for x
    x = 437,170,741,875.72/940,916.40
  6. Step 6: Final answer
    x = 464,622.30

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Double scale
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Similar ratio
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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.