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Finding the Fourth Proportional to 435,007.34, 652,485.04 and 258,636.72

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Solution

The fourth proportional to 435,007.34, 652,485.04 and 258,636.72 is: 387,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,007.34 : 652,485.04 = 258,636.72 : x
  2. Step 2: Convert to fraction form
    435,007.34/652,485.04 = 258,636.72/x
  3. Step 3: Cross multiply
    435,007.34x = 652,485.04 × 258,636.72
  4. Step 4: Simplify right side
    435,007.34x = 168,756,590,594.67
  5. Step 5: Solve for x
    x = 168,756,590,594.67/435,007.34
  6. Step 6: Final answer
    x = 387,939.64

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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.