Home / 908,937.72-1,363,258.90-429,164.59

Finding the Fourth Proportional to 908,937.72, 1,363,258.90 and 429,164.59

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Solution

The fourth proportional to 908,937.72, 1,363,258.90 and 429,164.59 is: 643,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,937.72 : 1,363,258.90 = 429,164.59 : x
  2. Step 2: Convert to fraction form
    908,937.72/1,363,258.90 = 429,164.59/x
  3. Step 3: Cross multiply
    908,937.72x = 1,363,258.90 × 429,164.59
  4. Step 4: Simplify right side
    908,937.72x = 585,062,446,882.35
  5. Step 5: Solve for x
    x = 585,062,446,882.35/908,937.72
  6. Step 6: Final answer
    x = 643,677.16

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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.