Home / 649,398.30-896,285.19-387,770.46

Finding the Fourth Proportional to 649,398.30, 896,285.19 and 387,770.46

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Solution

The fourth proportional to 649,398.30, 896,285.19 and 387,770.46 is: 535,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,398.30 : 896,285.19 = 387,770.46 : x
  2. Step 2: Convert to fraction form
    649,398.30/896,285.19 = 387,770.46/x
  3. Step 3: Cross multiply
    649,398.30x = 896,285.19 × 387,770.46
  4. Step 4: Simplify right side
    649,398.30x = 347,552,920,417.49
  5. Step 5: Solve for x
    x = 347,552,920,417.49/649,398.30
  6. Step 6: Final answer
    x = 535,192.22

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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.