Home / 749,413.72-1,034,128.14-422,708.68

Finding the Fourth Proportional to 749,413.72, 1,034,128.14 and 422,708.68

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Solution

The fourth proportional to 749,413.72, 1,034,128.14 and 422,708.68 is: 583,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,413.72 : 1,034,128.14 = 422,708.68 : x
  2. Step 2: Convert to fraction form
    749,413.72/1,034,128.14 = 422,708.68/x
  3. Step 3: Cross multiply
    749,413.72x = 1,034,128.14 × 422,708.68
  4. Step 4: Simplify right side
    749,413.72x = 437,134,941,010.26
  5. Step 5: Solve for x
    x = 437,134,941,010.26/749,413.72
  6. Step 6: Final answer
    x = 583,302.56

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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.