Home / 1,207,978.60-1,812,186.60-607,428.40

Finding the Fourth Proportional to 1,207,978.60, 1,812,186.60 and 607,428.40

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Solution

The fourth proportional to 1,207,978.60, 1,812,186.60 and 607,428.40 is: 911,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,978.60 : 1,812,186.60 = 607,428.40 : x
  2. Step 2: Convert to fraction form
    1,207,978.60/1,812,186.60 = 607,428.40/x
  3. Step 3: Cross multiply
    1,207,978.60x = 1,812,186.60 × 607,428.40
  4. Step 4: Simplify right side
    1,207,978.60x = 1,100,773,606,939.44
  5. Step 5: Solve for x
    x = 1,100,773,606,939.44/1,207,978.60
  6. Step 6: Final answer
    x = 911,252.57

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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.