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Finding the Fourth Proportional to 768,487.50, 1,152,737.73 and 269,851.50

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Solution

The fourth proportional to 768,487.50, 1,152,737.73 and 269,851.50 is: 404,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,487.50 : 1,152,737.73 = 269,851.50 : x
  2. Step 2: Convert to fraction form
    768,487.50/1,152,737.73 = 269,851.50/x
  3. Step 3: Cross multiply
    768,487.50x = 1,152,737.73 × 269,851.50
  4. Step 4: Simplify right side
    768,487.50x = 311,068,005,547.10
  5. Step 5: Solve for x
    x = 311,068,005,547.10/768,487.50
  6. Step 6: Final answer
    x = 404,779.53

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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.