Home / 1,207,720.40-1,811,580.60-497,512.40

Finding the Fourth Proportional to 1,207,720.40, 1,811,580.60 and 497,512.40

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Solution

The fourth proportional to 1,207,720.40, 1,811,580.60 and 497,512.40 is: 746,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,720.40 : 1,811,580.60 = 497,512.40 : x
  2. Step 2: Convert to fraction form
    1,207,720.40/1,811,580.60 = 497,512.40/x
  3. Step 3: Cross multiply
    1,207,720.40x = 1,811,580.60 × 497,512.40
  4. Step 4: Simplify right side
    1,207,720.40x = 901,283,812,099.44
  5. Step 5: Solve for x
    x = 901,283,812,099.44/1,207,720.40
  6. Step 6: Final answer
    x = 746,268.60

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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.