Home / 665,095.68-917,905.23-378,569.52

Finding the Fourth Proportional to 665,095.68, 917,905.23 and 378,569.52

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Solution

The fourth proportional to 665,095.68, 917,905.23 and 378,569.52 is: 522,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,095.68 : 917,905.23 = 378,569.52 : x
  2. Step 2: Convert to fraction form
    665,095.68/917,905.23 = 378,569.52/x
  3. Step 3: Cross multiply
    665,095.68x = 917,905.23 × 378,569.52
  4. Step 4: Simplify right side
    665,095.68x = 347,490,942,326.59
  5. Step 5: Solve for x
    x = 347,490,942,326.59/665,095.68
  6. Step 6: Final answer
    x = 522,467.60

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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.