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Finding the Fourth Proportional to 486,011.85, 729,017.78 and 297,055.05

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Solution

The fourth proportional to 486,011.85, 729,017.78 and 297,055.05 is: 445,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,011.85 : 729,017.78 = 297,055.05 : x
  2. Step 2: Convert to fraction form
    486,011.85/729,017.78 = 297,055.05/x
  3. Step 3: Cross multiply
    486,011.85x = 729,017.78 × 297,055.05
  4. Step 4: Simplify right side
    486,011.85x = 216,558,411,603.51
  5. Step 5: Solve for x
    x = 216,558,411,603.51/486,011.85
  6. Step 6: Final answer
    x = 445,582.58

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.