Home / 388,981.20-584,346.60-374,109.60

Finding the Fourth Proportional to 388,981.20, 584,346.60 and 374,109.60

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Solution

The fourth proportional to 388,981.20, 584,346.60 and 374,109.60 is: 562,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,981.20 : 584,346.60 = 374,109.60 : x
  2. Step 2: Convert to fraction form
    388,981.20/584,346.60 = 374,109.60/x
  3. Step 3: Cross multiply
    388,981.20x = 584,346.60 × 374,109.60
  4. Step 4: Simplify right side
    388,981.20x = 218,609,672,787.36
  5. Step 5: Solve for x
    x = 218,609,672,787.36/388,981.20
  6. Step 6: Final answer
    x = 562,005.75

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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.