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Finding the Fourth Proportional to 486,852.80, 729,642.87 and 352,369.71

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Solution

The fourth proportional to 486,852.80, 729,642.87 and 352,369.71 is: 528,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,852.80 : 729,642.87 = 352,369.71 : x
  2. Step 2: Convert to fraction form
    486,852.80/729,642.87 = 352,369.71/x
  3. Step 3: Cross multiply
    486,852.80x = 729,642.87 × 352,369.71
  4. Step 4: Simplify right side
    486,852.80x = 257,104,046,505.47
  5. Step 5: Solve for x
    x = 257,104,046,505.47/486,852.80
  6. Step 6: Final answer
    x = 528,094.01

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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.