Home / 940,801.80-1,411,202.70-309,779.40

Finding the Fourth Proportional to 940,801.80, 1,411,202.70 and 309,779.40

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Solution

The fourth proportional to 940,801.80, 1,411,202.70 and 309,779.40 is: 464,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,801.80 : 1,411,202.70 = 309,779.40 : x
  2. Step 2: Convert to fraction form
    940,801.80/1,411,202.70 = 309,779.40/x
  3. Step 3: Cross multiply
    940,801.80x = 1,411,202.70 × 309,779.40
  4. Step 4: Simplify right side
    940,801.80x = 437,161,525,684.38
  5. Step 5: Solve for x
    x = 437,161,525,684.38/940,801.80
  6. Step 6: Final answer
    x = 464,669.10

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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.