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Finding the Fourth Proportional to 435,069.63, 652,578.12 and 258,699.02

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Solution

The fourth proportional to 435,069.63, 652,578.12 and 258,699.02 is: 388,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,069.63 : 652,578.12 = 258,699.02 : x
  2. Step 2: Convert to fraction form
    435,069.63/652,578.12 = 258,699.02/x
  3. Step 3: Cross multiply
    435,069.63x = 652,578.12 × 258,699.02
  4. Step 4: Simplify right side
    435,069.63x = 168,821,316,854.55
  5. Step 5: Solve for x
    x = 168,821,316,854.55/435,069.63
  6. Step 6: Final answer
    x = 388,032.87

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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.