Home / 665,390.08-918,260.96-363,603.52

Finding the Fourth Proportional to 665,390.08, 918,260.96 and 363,603.52

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Solution

The fourth proportional to 665,390.08, 918,260.96 and 363,603.52 is: 501,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,390.08 : 918,260.96 = 363,603.52 : x
  2. Step 2: Convert to fraction form
    665,390.08/918,260.96 = 363,603.52/x
  3. Step 3: Cross multiply
    665,390.08x = 918,260.96 × 363,603.52
  4. Step 4: Simplify right side
    665,390.08x = 333,882,917,334.58
  5. Step 5: Solve for x
    x = 333,882,917,334.58/665,390.08
  6. Step 6: Final answer
    x = 501,785.23

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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.