Home / 830,007.48-1,245,400.02-409,053.72

Finding the Fourth Proportional to 830,007.48, 1,245,400.02 and 409,053.72

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Solution

The fourth proportional to 830,007.48, 1,245,400.02 and 409,053.72 is: 613,772.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,007.48 : 1,245,400.02 = 409,053.72 : x
  2. Step 2: Convert to fraction form
    830,007.48/1,245,400.02 = 409,053.72/x
  3. Step 3: Cross multiply
    830,007.48x = 1,245,400.02 × 409,053.72
  4. Step 4: Simplify right side
    830,007.48x = 509,435,511,069.07
  5. Step 5: Solve for x
    x = 509,435,511,069.07/830,007.48
  6. Step 6: Final answer
    x = 613,772.19

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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.