Home / 1,038,580.40-1,557,724.80-328,680.20

Finding the Fourth Proportional to 1,038,580.40, 1,557,724.80 and 328,680.20

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Solution

The fourth proportional to 1,038,580.40, 1,557,724.80 and 328,680.20 is: 492,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,580.40 : 1,557,724.80 = 328,680.20 : x
  2. Step 2: Convert to fraction form
    1,038,580.40/1,557,724.80 = 328,680.20/x
  3. Step 3: Cross multiply
    1,038,580.40x = 1,557,724.80 × 328,680.20
  4. Step 4: Simplify right side
    1,038,580.40x = 511,993,298,808.96
  5. Step 5: Solve for x
    x = 511,993,298,808.96/1,038,580.40
  6. Step 6: Final answer
    x = 492,974.16

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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.