Home / 908,938.22-1,363,259.65-429,165.09

Finding the Fourth Proportional to 908,938.22, 1,363,259.65 and 429,165.09

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Solution

The fourth proportional to 908,938.22, 1,363,259.65 and 429,165.09 is: 643,677.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,938.22 : 1,363,259.65 = 429,165.09 : x
  2. Step 2: Convert to fraction form
    908,938.22/1,363,259.65 = 429,165.09/x
  3. Step 3: Cross multiply
    908,938.22x = 1,363,259.65 × 429,165.09
  4. Step 4: Simplify right side
    908,938.22x = 585,063,450,385.62
  5. Step 5: Solve for x
    x = 585,063,450,385.62/908,938.22
  6. Step 6: Final answer
    x = 643,677.91

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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.