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Finding the Fourth Proportional to 602,129.25, 830,937.51 and 347,480.46

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Solution

The fourth proportional to 602,129.25, 830,937.51 and 347,480.46 is: 479,522.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,129.25 : 830,937.51 = 347,480.46 : x
  2. Step 2: Convert to fraction form
    602,129.25/830,937.51 = 347,480.46/x
  3. Step 3: Cross multiply
    602,129.25x = 830,937.51 × 347,480.46
  4. Step 4: Simplify right side
    602,129.25x = 288,734,548,206.06
  5. Step 5: Solve for x
    x = 288,734,548,206.06/602,129.25
  6. Step 6: Final answer
    x = 479,522.54

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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.