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Finding the Fourth Proportional to 542,208.40, 814,325.61 and 477,315.81

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Solution

The fourth proportional to 542,208.40, 814,325.61 and 477,315.81 is: 716,865.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,208.40 : 814,325.61 = 477,315.81 : x
  2. Step 2: Convert to fraction form
    542,208.40/814,325.61 = 477,315.81/x
  3. Step 3: Cross multiply
    542,208.40x = 814,325.61 × 477,315.81
  4. Step 4: Simplify right side
    542,208.40x = 388,690,487,298.37
  5. Step 5: Solve for x
    x = 388,690,487,298.37/542,208.40
  6. Step 6: Final answer
    x = 716,865.49

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1.5x scale

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.