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Finding the Fourth Proportional to 488,886.30, 733,329.45 and 429,788.70

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Solution

The fourth proportional to 488,886.30, 733,329.45 and 429,788.70 is: 644,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,886.30 : 733,329.45 = 429,788.70 : x
  2. Step 2: Convert to fraction form
    488,886.30/733,329.45 = 429,788.70/x
  3. Step 3: Cross multiply
    488,886.30x = 733,329.45 × 429,788.70
  4. Step 4: Simplify right side
    488,886.30x = 315,176,710,987.22
  5. Step 5: Solve for x
    x = 315,176,710,987.22/488,886.30
  6. Step 6: Final answer
    x = 644,683.05

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Similar ratio
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1.5x scale

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.