Home / 369,738.57-554,607.86-120,420.57

Finding the Fourth Proportional to 369,738.57, 554,607.86 and 120,420.57

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Solution

The fourth proportional to 369,738.57, 554,607.86 and 120,420.57 is: 180,630.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,738.57 : 554,607.86 = 120,420.57 : x
  2. Step 2: Convert to fraction form
    369,738.57/554,607.86 = 120,420.57/x
  3. Step 3: Cross multiply
    369,738.57x = 554,607.86 × 120,420.57
  4. Step 4: Simplify right side
    369,738.57x = 66,786,194,627.68
  5. Step 5: Solve for x
    x = 66,786,194,627.68/369,738.57
  6. Step 6: Final answer
    x = 180,630.86

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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.