Home / 388,923.60-583,615.80-283,477.20

Finding the Fourth Proportional to 388,923.60, 583,615.80 and 283,477.20

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Solution

The fourth proportional to 388,923.60, 583,615.80 and 283,477.20 is: 425,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,923.60 : 583,615.80 = 283,477.20 : x
  2. Step 2: Convert to fraction form
    388,923.60/583,615.80 = 283,477.20/x
  3. Step 3: Cross multiply
    388,923.60x = 583,615.80 × 283,477.20
  4. Step 4: Simplify right side
    388,923.60x = 165,441,772,859.76
  5. Step 5: Solve for x
    x = 165,441,772,859.76/388,923.60
  6. Step 6: Final answer
    x = 425,383.73

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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.