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Finding the Fourth Proportional to 554,498.82, 765,205.65 and 299,849.40

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Solution

The fourth proportional to 554,498.82, 765,205.65 and 299,849.40 is: 413,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,498.82 : 765,205.65 = 299,849.40 : x
  2. Step 2: Convert to fraction form
    554,498.82/765,205.65 = 299,849.40/x
  3. Step 3: Cross multiply
    554,498.82x = 765,205.65 × 299,849.40
  4. Step 4: Simplify right side
    554,498.82x = 229,446,455,029.11
  5. Step 5: Solve for x
    x = 229,446,455,029.11/554,498.82
  6. Step 6: Final answer
    x = 413,790.70

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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.