Home / 803,057.13-1,108,420.34-545,370.21

Finding the Fourth Proportional to 803,057.13, 1,108,420.34 and 545,370.21

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Solution

The fourth proportional to 803,057.13, 1,108,420.34 and 545,370.21 is: 752,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,057.13 : 1,108,420.34 = 545,370.21 : x
  2. Step 2: Convert to fraction form
    803,057.13/1,108,420.34 = 545,370.21/x
  3. Step 3: Cross multiply
    803,057.13x = 1,108,420.34 × 545,370.21
  4. Step 4: Simplify right side
    803,057.13x = 604,499,430,867.22
  5. Step 5: Solve for x
    x = 604,499,430,867.22/803,057.13
  6. Step 6: Final answer
    x = 752,747.73

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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.