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Finding the Fourth Proportional to 543,018.53, 749,365.49 and 301,302.79

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Solution

The fourth proportional to 543,018.53, 749,365.49 and 301,302.79 is: 415,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,018.53 : 749,365.49 = 301,302.79 : x
  2. Step 2: Convert to fraction form
    543,018.53/749,365.49 = 301,302.79/x
  3. Step 3: Cross multiply
    543,018.53x = 749,365.49 × 301,302.79
  4. Step 4: Simplify right side
    543,018.53x = 225,785,911,746.56
  5. Step 5: Solve for x
    x = 225,785,911,746.56/543,018.53
  6. Step 6: Final answer
    x = 415,797.80

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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.