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Finding the Fourth Proportional to 554,579.96, 765,320.85 and 299,931.15

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Solution

The fourth proportional to 554,579.96, 765,320.85 and 299,931.15 is: 413,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,579.96 : 765,320.85 = 299,931.15 : x
  2. Step 2: Convert to fraction form
    554,579.96/765,320.85 = 299,931.15/x
  3. Step 3: Cross multiply
    554,579.96x = 765,320.85 × 299,931.15
  4. Step 4: Simplify right side
    554,579.96x = 229,543,562,659.48
  5. Step 5: Solve for x
    x = 229,543,562,659.48/554,579.96
  6. Step 6: Final answer
    x = 413,905.26

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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.