Home / 388,901.60-583,582.80-283,455.20

Finding the Fourth Proportional to 388,901.60, 583,582.80 and 283,455.20

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Solution

The fourth proportional to 388,901.60, 583,582.80 and 283,455.20 is: 425,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,901.60 : 583,582.80 = 283,455.20 : x
  2. Step 2: Convert to fraction form
    388,901.60/583,582.80 = 283,455.20/x
  3. Step 3: Cross multiply
    388,901.60x = 583,582.80 × 283,455.20
  4. Step 4: Simplify right side
    388,901.60x = 165,419,579,290.56
  5. Step 5: Solve for x
    x = 165,419,579,290.56/388,901.60
  6. Step 6: Final answer
    x = 425,350.73

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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.