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Finding the Fourth Proportional to 554,458.52, 765,153.30 and 299,809.64

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Solution

The fourth proportional to 554,458.52, 765,153.30 and 299,809.64 is: 413,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,458.52 : 765,153.30 = 299,809.64 : x
  2. Step 2: Convert to fraction form
    554,458.52/765,153.30 = 299,809.64/x
  3. Step 3: Cross multiply
    554,458.52x = 765,153.30 × 299,809.64
  4. Step 4: Simplify right side
    554,458.52x = 229,400,335,417.81
  5. Step 5: Solve for x
    x = 229,400,335,417.81/554,458.52
  6. Step 6: Final answer
    x = 413,737.60

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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.