Home / 808,655.40-1,212,983.10-542,934.90

Finding the Fourth Proportional to 808,655.40, 1,212,983.10 and 542,934.90

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Solution

The fourth proportional to 808,655.40, 1,212,983.10 and 542,934.90 is: 814,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,655.40 : 1,212,983.10 = 542,934.90 : x
  2. Step 2: Convert to fraction form
    808,655.40/1,212,983.10 = 542,934.90/x
  3. Step 3: Cross multiply
    808,655.40x = 1,212,983.10 × 542,934.90
  4. Step 4: Simplify right side
    808,655.40x = 658,570,858,100.19
  5. Step 5: Solve for x
    x = 658,570,858,100.19/808,655.40
  6. Step 6: Final answer
    x = 814,402.35

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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.