Home / 768,411.64-1,152,788.82-235,986.40

Finding the Fourth Proportional to 768,411.64, 1,152,788.82 and 235,986.40

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Solution

The fourth proportional to 768,411.64, 1,152,788.82 and 235,986.40 is: 354,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,411.64 : 1,152,788.82 = 235,986.40 : x
  2. Step 2: Convert to fraction form
    768,411.64/1,152,788.82 = 235,986.40/x
  3. Step 3: Cross multiply
    768,411.64x = 1,152,788.82 × 235,986.40
  4. Step 4: Simplify right side
    768,411.64x = 272,042,483,592.05
  5. Step 5: Solve for x
    x = 272,042,483,592.05/768,411.64
  6. Step 6: Final answer
    x = 354,032.23

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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.