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Finding the Fourth Proportional to 383,953.66, 575,482.05 and 288,878.39

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Solution

The fourth proportional to 383,953.66, 575,482.05 and 288,878.39 is: 432,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,953.66 : 575,482.05 = 288,878.39 : x
  2. Step 2: Convert to fraction form
    383,953.66/575,482.05 = 288,878.39/x
  3. Step 3: Cross multiply
    383,953.66x = 575,482.05 × 288,878.39
  4. Step 4: Simplify right side
    383,953.66x = 166,244,328,077.90
  5. Step 5: Solve for x
    x = 166,244,328,077.90/383,953.66
  6. Step 6: Final answer
    x = 432,980.19

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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.