Home / 727,483.72-1,003,927.80-421,737.33

Finding the Fourth Proportional to 727,483.72, 1,003,927.80 and 421,737.33

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Solution

The fourth proportional to 727,483.72, 1,003,927.80 and 421,737.33 is: 581,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,483.72 : 1,003,927.80 = 421,737.33 : x
  2. Step 2: Convert to fraction form
    727,483.72/1,003,927.80 = 421,737.33/x
  3. Step 3: Cross multiply
    727,483.72x = 1,003,927.80 × 421,737.33
  4. Step 4: Simplify right side
    727,483.72x = 423,393,835,231.02
  5. Step 5: Solve for x
    x = 423,393,835,231.02/727,483.72
  6. Step 6: Final answer
    x = 581,997.68

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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.