Home / 1,038,273.80-1,557,119.10-328,519.40

Finding the Fourth Proportional to 1,038,273.80, 1,557,119.10 and 328,519.40

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Solution

The fourth proportional to 1,038,273.80, 1,557,119.10 and 328,519.40 is: 492,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,273.80 : 1,557,119.10 = 328,519.40 : x
  2. Step 2: Convert to fraction form
    1,038,273.80/1,557,119.10 = 328,519.40/x
  3. Step 3: Cross multiply
    1,038,273.80x = 1,557,119.10 × 328,519.40
  4. Step 4: Simplify right side
    1,038,273.80x = 511,543,832,460.54
  5. Step 5: Solve for x
    x = 511,543,832,460.54/1,038,273.80
  6. Step 6: Final answer
    x = 492,686.84

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Double scale
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1.5x scale

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.