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Finding the Fourth Proportional to 647,455.52, 893,171.04 and 432,648.32

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Solution

The fourth proportional to 647,455.52, 893,171.04 and 432,648.32 is: 596,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,455.52 : 893,171.04 = 432,648.32 : x
  2. Step 2: Convert to fraction form
    647,455.52/893,171.04 = 432,648.32/x
  3. Step 3: Cross multiply
    647,455.52x = 893,171.04 × 432,648.32
  4. Step 4: Simplify right side
    647,455.52x = 386,428,949,928.65
  5. Step 5: Solve for x
    x = 386,428,949,928.65/647,455.52
  6. Step 6: Final answer
    x = 596,842.47

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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.