Home / 745,413.36-1,028,687.28-423,093.30

Finding the Fourth Proportional to 745,413.36, 1,028,687.28 and 423,093.30

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Solution

The fourth proportional to 745,413.36, 1,028,687.28 and 423,093.30 is: 583,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,413.36 : 1,028,687.28 = 423,093.30 : x
  2. Step 2: Convert to fraction form
    745,413.36/1,028,687.28 = 423,093.30/x
  3. Step 3: Cross multiply
    745,413.36x = 1,028,687.28 × 423,093.30
  4. Step 4: Simplify right side
    745,413.36x = 435,230,695,963.22
  5. Step 5: Solve for x
    x = 435,230,695,963.22/745,413.36
  6. Step 6: Final answer
    x = 583,878.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.