Home / 920,124.89-1,270,835.11-613,668.77

Finding the Fourth Proportional to 920,124.89, 1,270,835.11 and 613,668.77

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Solution

The fourth proportional to 920,124.89, 1,270,835.11 and 613,668.77 is: 847,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,124.89 : 1,270,835.11 = 613,668.77 : x
  2. Step 2: Convert to fraction form
    920,124.89/1,270,835.11 = 613,668.77/x
  3. Step 3: Cross multiply
    920,124.89x = 1,270,835.11 × 613,668.77
  4. Step 4: Simplify right side
    920,124.89x = 779,871,818,826.52
  5. Step 5: Solve for x
    x = 779,871,818,826.52/920,124.89
  6. Step 6: Final answer
    x = 847,571.70

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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.