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Finding the Fourth Proportional to 548,587.76, 757,113.90 and 306,931.56

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Solution

The fourth proportional to 548,587.76, 757,113.90 and 306,931.56 is: 423,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,587.76 : 757,113.90 = 306,931.56 : x
  2. Step 2: Convert to fraction form
    548,587.76/757,113.90 = 306,931.56/x
  3. Step 3: Cross multiply
    548,587.76x = 757,113.90 × 306,931.56
  4. Step 4: Simplify right side
    548,587.76x = 232,382,150,424.68
  5. Step 5: Solve for x
    x = 232,382,150,424.68/548,587.76
  6. Step 6: Final answer
    x = 423,600.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.