Home / 805,274.48-1,208,108.96-400,657.62

Finding the Fourth Proportional to 805,274.48, 1,208,108.96 and 400,657.62

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Solution

The fourth proportional to 805,274.48, 1,208,108.96 and 400,657.62 is: 601,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,274.48 : 1,208,108.96 = 400,657.62 : x
  2. Step 2: Convert to fraction form
    805,274.48/1,208,108.96 = 400,657.62/x
  3. Step 3: Cross multiply
    805,274.48x = 1,208,108.96 × 400,657.62
  4. Step 4: Simplify right side
    805,274.48x = 484,038,060,614.28
  5. Step 5: Solve for x
    x = 484,038,060,614.28/805,274.48
  6. Step 6: Final answer
    x = 601,084.57

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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.