Home / 1,038,460.90-1,557,853.39-328,421.38

Finding the Fourth Proportional to 1,038,460.90, 1,557,853.39 and 328,421.38

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Solution

The fourth proportional to 1,038,460.90, 1,557,853.39 and 328,421.38 is: 492,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,460.90 : 1,557,853.39 = 328,421.38 : x
  2. Step 2: Convert to fraction form
    1,038,460.90/1,557,853.39 = 328,421.38/x
  3. Step 3: Cross multiply
    1,038,460.90x = 1,557,853.39 × 328,421.38
  4. Step 4: Simplify right side
    1,038,460.90x = 511,632,360,181.48
  5. Step 5: Solve for x
    x = 511,632,360,181.48/1,038,460.90
  6. Step 6: Final answer
    x = 492,683.32

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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.