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Finding the Fourth Proportional to 519,152.55, 716,583.74 and 304,339.11

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Solution

The fourth proportional to 519,152.55, 716,583.74 and 304,339.11 is: 420,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,152.55 : 716,583.74 = 304,339.11 : x
  2. Step 2: Convert to fraction form
    519,152.55/716,583.74 = 304,339.11/x
  3. Step 3: Cross multiply
    519,152.55x = 716,583.74 × 304,339.11
  4. Step 4: Simplify right side
    519,152.55x = 218,084,456,150.38
  5. Step 5: Solve for x
    x = 218,084,456,150.38/519,152.55
  6. Step 6: Final answer
    x = 420,077.79

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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.