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Finding the Fourth Proportional to 601,917.19, 830,627.72 and 329,975.79

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Solution

The fourth proportional to 601,917.19, 830,627.72 and 329,975.79 is: 455,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,917.19 : 830,627.72 = 329,975.79 : x
  2. Step 2: Convert to fraction form
    601,917.19/830,627.72 = 329,975.79/x
  3. Step 3: Cross multiply
    601,917.19x = 830,627.72 × 329,975.79
  4. Step 4: Simplify right side
    601,917.19x = 274,087,038,102.90
  5. Step 5: Solve for x
    x = 274,087,038,102.90/601,917.19
  6. Step 6: Final answer
    x = 455,356.72

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Double scale
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Similar ratio
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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.