Home / 808,749.30-1,213,383.15-542,810.10

Finding the Fourth Proportional to 808,749.30, 1,213,383.15 and 542,810.10

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Solution

The fourth proportional to 808,749.30, 1,213,383.15 and 542,810.10 is: 814,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,749.30 : 1,213,383.15 = 542,810.10 : x
  2. Step 2: Convert to fraction form
    808,749.30/1,213,383.15 = 542,810.10/x
  3. Step 3: Cross multiply
    808,749.30x = 1,213,383.15 × 542,810.10
  4. Step 4: Simplify right side
    808,749.30x = 658,636,628,989.82
  5. Step 5: Solve for x
    x = 658,636,628,989.82/808,749.30
  6. Step 6: Final answer
    x = 814,389.12

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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.