Home / 749,413.47-1,034,127.80-422,708.43

Finding the Fourth Proportional to 749,413.47, 1,034,127.80 and 422,708.43

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Solution

The fourth proportional to 749,413.47, 1,034,127.80 and 422,708.43 is: 583,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,413.47 : 1,034,127.80 = 422,708.43 : x
  2. Step 2: Convert to fraction form
    749,413.47/1,034,127.80 = 422,708.43/x
  3. Step 3: Cross multiply
    749,413.47x = 1,034,127.80 × 422,708.43
  4. Step 4: Simplify right side
    749,413.47x = 437,134,536,643.81
  5. Step 5: Solve for x
    x = 437,134,536,643.81/749,413.47
  6. Step 6: Final answer
    x = 583,302.21

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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.