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Finding the Fourth Proportional to 554,464.06, 765,159.86 and 299,814.64

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Solution

The fourth proportional to 554,464.06, 765,159.86 and 299,814.64 is: 413,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,464.06 : 765,159.86 = 299,814.64 : x
  2. Step 2: Convert to fraction form
    554,464.06/765,159.86 = 299,814.64/x
  3. Step 3: Cross multiply
    554,464.06x = 765,159.86 × 299,814.64
  4. Step 4: Simplify right side
    554,464.06x = 229,406,127,968.35
  5. Step 5: Solve for x
    x = 229,406,127,968.35/554,464.06
  6. Step 6: Final answer
    x = 413,743.91

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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.