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Finding the Fourth Proportional to 435,921.51, 652,578.71 and 266,910.15

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Solution

The fourth proportional to 435,921.51, 652,578.71 and 266,910.15 is: 399,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,921.51 : 652,578.71 = 266,910.15 : x
  2. Step 2: Convert to fraction form
    435,921.51/652,578.71 = 266,910.15/x
  3. Step 3: Cross multiply
    435,921.51x = 652,578.71 × 266,910.15
  4. Step 4: Simplify right side
    435,921.51x = 174,179,880,038.36
  5. Step 5: Solve for x
    x = 174,179,880,038.36/435,921.51
  6. Step 6: Final answer
    x = 399,567.07

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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.