Home / 542,983.20-813,956.40-422,973.60

Finding the Fourth Proportional to 542,983.20, 813,956.40 and 422,973.60

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Solution

The fourth proportional to 542,983.20, 813,956.40 and 422,973.60 is: 634,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,983.20 : 813,956.40 = 422,973.60 : x
  2. Step 2: Convert to fraction form
    542,983.20/813,956.40 = 422,973.60/x
  3. Step 3: Cross multiply
    542,983.20x = 813,956.40 × 422,973.60
  4. Step 4: Simplify right side
    542,983.20x = 344,282,068,751.04
  5. Step 5: Solve for x
    x = 344,282,068,751.04/542,983.20
  6. Step 6: Final answer
    x = 634,056.58

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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.