Home / 1,341,812.90-2,012,136.15-442,907.30

Finding the Fourth Proportional to 1,341,812.90, 2,012,136.15 and 442,907.30

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Solution

The fourth proportional to 1,341,812.90, 2,012,136.15 and 442,907.30 is: 664,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,812.90 : 2,012,136.15 = 442,907.30 : x
  2. Step 2: Convert to fraction form
    1,341,812.90/2,012,136.15 = 442,907.30/x
  3. Step 3: Cross multiply
    1,341,812.90x = 2,012,136.15 × 442,907.30
  4. Step 4: Simplify right side
    1,341,812.90x = 891,189,789,428.90
  5. Step 5: Solve for x
    x = 891,189,789,428.90/1,341,812.90
  6. Step 6: Final answer
    x = 664,168.45

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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.