Home / 803,213.55-1,108,430.19-440,628.12

Finding the Fourth Proportional to 803,213.55, 1,108,430.19 and 440,628.12

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Solution

The fourth proportional to 803,213.55, 1,108,430.19 and 440,628.12 is: 608,064.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,213.55 : 1,108,430.19 = 440,628.12 : x
  2. Step 2: Convert to fraction form
    803,213.55/1,108,430.19 = 440,628.12/x
  3. Step 3: Cross multiply
    803,213.55x = 1,108,430.19 × 440,628.12
  4. Step 4: Simplify right side
    803,213.55x = 488,405,510,770.94
  5. Step 5: Solve for x
    x = 488,405,510,770.94/803,213.55
  6. Step 6: Final answer
    x = 608,064.33

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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.