Home / 830,511.20-1,243,693.20-548,501.60

Finding the Fourth Proportional to 830,511.20, 1,243,693.20 and 548,501.60

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Solution

The fourth proportional to 830,511.20, 1,243,693.20 and 548,501.60 is: 821,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,511.20 : 1,243,693.20 = 548,501.60 : x
  2. Step 2: Convert to fraction form
    830,511.20/1,243,693.20 = 548,501.60/x
  3. Step 3: Cross multiply
    830,511.20x = 1,243,693.20 × 548,501.60
  4. Step 4: Simplify right side
    830,511.20x = 682,167,710,109.12
  5. Step 5: Solve for x
    x = 682,167,710,109.12/830,511.20
  6. Step 6: Final answer
    x = 821,382.91

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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.