Home / 920,634.77-1,270,035.92-715,280.41

Finding the Fourth Proportional to 920,634.77, 1,270,035.92 and 715,280.41

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Solution

The fourth proportional to 920,634.77, 1,270,035.92 and 715,280.41 is: 986,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,634.77 : 1,270,035.92 = 715,280.41 : x
  2. Step 2: Convert to fraction form
    920,634.77/1,270,035.92 = 715,280.41/x
  3. Step 3: Cross multiply
    920,634.77x = 1,270,035.92 × 715,280.41
  4. Step 4: Simplify right side
    920,634.77x = 908,431,807,222.15
  5. Step 5: Solve for x
    x = 908,431,807,222.15/920,634.77
  6. Step 6: Final answer
    x = 986,745.06

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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.