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Finding the Fourth Proportional to 554,348.72, 765,001.30 and 299,699.84

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Solution

The fourth proportional to 554,348.72, 765,001.30 and 299,699.84 is: 413,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,348.72 : 765,001.30 = 299,699.84 : x
  2. Step 2: Convert to fraction form
    554,348.72/765,001.30 = 299,699.84/x
  3. Step 3: Cross multiply
    554,348.72x = 765,001.30 × 299,699.84
  4. Step 4: Simplify right side
    554,348.72x = 229,270,767,209.79
  5. Step 5: Solve for x
    x = 229,270,767,209.79/554,348.72
  6. Step 6: Final answer
    x = 413,585.82

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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.