Home / 648,123.16-894,405.13-357,734.66

Finding the Fourth Proportional to 648,123.16, 894,405.13 and 357,734.66

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Solution

The fourth proportional to 648,123.16, 894,405.13 and 357,734.66 is: 493,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,123.16 : 894,405.13 = 357,734.66 : x
  2. Step 2: Convert to fraction form
    648,123.16/894,405.13 = 357,734.66/x
  3. Step 3: Cross multiply
    648,123.16x = 894,405.13 × 357,734.66
  4. Step 4: Simplify right side
    648,123.16x = 319,959,718,017.68
  5. Step 5: Solve for x
    x = 319,959,718,017.68/648,123.16
  6. Step 6: Final answer
    x = 493,671.17

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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.