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Finding the Fourth Proportional to 445,913.28, 615,319.74 and 264,594

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Solution

The fourth proportional to 445,913.28, 615,319.74 and 264,594 is: 365,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,913.28 : 615,319.74 = 264,594 : x
  2. Step 2: Convert to fraction form
    445,913.28/615,319.74 = 264,594/x
  3. Step 3: Cross multiply
    445,913.28x = 615,319.74 × 264,594
  4. Step 4: Simplify right side
    445,913.28x = 162,809,911,285.56
  5. Step 5: Solve for x
    x = 162,809,911,285.56/445,913.28
  6. Step 6: Final answer
    x = 365,115.64

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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.