Home / 768,872.34-1,061,039.61-424,731.96

Finding the Fourth Proportional to 768,872.34, 1,061,039.61 and 424,731.96

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Solution

The fourth proportional to 768,872.34, 1,061,039.61 and 424,731.96 is: 586,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,872.34 : 1,061,039.61 = 424,731.96 : x
  2. Step 2: Convert to fraction form
    768,872.34/1,061,039.61 = 424,731.96/x
  3. Step 3: Cross multiply
    768,872.34x = 1,061,039.61 × 424,731.96
  4. Step 4: Simplify right side
    768,872.34x = 450,657,433,192.94
  5. Step 5: Solve for x
    x = 450,657,433,192.94/768,872.34
  6. Step 6: Final answer
    x = 586,127.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.