Home / 388,983-583,573.08-108,500.28

Finding the Fourth Proportional to 388,983, 583,573.08 and 108,500.28

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Solution

The fourth proportional to 388,983, 583,573.08 and 108,500.28 is: 162,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,983 : 583,573.08 = 108,500.28 : x
  2. Step 2: Convert to fraction form
    388,983/583,573.08 = 108,500.28/x
  3. Step 3: Cross multiply
    388,983x = 583,573.08 × 108,500.28
  4. Step 4: Simplify right side
    388,983x = 63,317,842,580.46
  5. Step 5: Solve for x
    x = 63,317,842,580.46/388,983
  6. Step 6: Final answer
    x = 162,777.92

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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.