Home / 785,882.36-1,178,875.38-287,596.28

Finding the Fourth Proportional to 785,882.36, 1,178,875.38 and 287,596.28

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Solution

The fourth proportional to 785,882.36, 1,178,875.38 and 287,596.28 is: 431,413.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,882.36 : 1,178,875.38 = 287,596.28 : x
  2. Step 2: Convert to fraction form
    785,882.36/1,178,875.38 = 287,596.28/x
  3. Step 3: Cross multiply
    785,882.36x = 1,178,875.38 × 287,596.28
  4. Step 4: Simplify right side
    785,882.36x = 339,040,173,871.59
  5. Step 5: Solve for x
    x = 339,040,173,871.59/785,882.36
  6. Step 6: Final answer
    x = 431,413.39

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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.