Home / 783,693.23-1,080,495.48-507,563.21

Finding the Fourth Proportional to 783,693.23, 1,080,495.48 and 507,563.21

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Solution

The fourth proportional to 783,693.23, 1,080,495.48 and 507,563.21 is: 699,788.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,693.23 : 1,080,495.48 = 507,563.21 : x
  2. Step 2: Convert to fraction form
    783,693.23/1,080,495.48 = 507,563.21/x
  3. Step 3: Cross multiply
    783,693.23x = 1,080,495.48 × 507,563.21
  4. Step 4: Simplify right side
    783,693.23x = 548,419,754,219.29
  5. Step 5: Solve for x
    x = 548,419,754,219.29/783,693.23
  6. Step 6: Final answer
    x = 699,788.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.