Home / 830,099.70-1,245,149.55-530,918.10

Finding the Fourth Proportional to 830,099.70, 1,245,149.55 and 530,918.10

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Solution

The fourth proportional to 830,099.70, 1,245,149.55 and 530,918.10 is: 796,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,099.70 : 1,245,149.55 = 530,918.10 : x
  2. Step 2: Convert to fraction form
    830,099.70/1,245,149.55 = 530,918.10/x
  3. Step 3: Cross multiply
    830,099.70x = 1,245,149.55 × 530,918.10
  4. Step 4: Simplify right side
    830,099.70x = 661,072,433,301.86
  5. Step 5: Solve for x
    x = 661,072,433,301.86/830,099.70
  6. Step 6: Final answer
    x = 796,377.15

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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.