Home / 734,208.06-1,013,209.92-428,495.61

Finding the Fourth Proportional to 734,208.06, 1,013,209.92 and 428,495.61

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Solution

The fourth proportional to 734,208.06, 1,013,209.92 and 428,495.61 is: 591,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,208.06 : 1,013,209.92 = 428,495.61 : x
  2. Step 2: Convert to fraction form
    734,208.06/1,013,209.92 = 428,495.61/x
  3. Step 3: Cross multiply
    734,208.06x = 1,013,209.92 × 428,495.61
  4. Step 4: Simplify right side
    734,208.06x = 434,156,002,728.45
  5. Step 5: Solve for x
    x = 434,156,002,728.45/734,208.06
  6. Step 6: Final answer
    x = 591,325.57

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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.