Home / 1,038,221-1,557,321.60-328,248.92

Finding the Fourth Proportional to 1,038,221, 1,557,321.60 and 328,248.92

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Solution

The fourth proportional to 1,038,221, 1,557,321.60 and 328,248.92 is: 492,370.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,221 : 1,557,321.60 = 328,248.92 : x
  2. Step 2: Convert to fraction form
    1,038,221/1,557,321.60 = 328,248.92/x
  3. Step 3: Cross multiply
    1,038,221x = 1,557,321.60 × 328,248.92
  4. Step 4: Simplify right side
    1,038,221x = 511,189,133,292.67
  5. Step 5: Solve for x
    x = 511,189,133,292.67/1,038,221
  6. Step 6: Final answer
    x = 492,370.25

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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.