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Finding the Fourth Proportional to 602,160.56, 830,992.98 and 330,211.20

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Solution

The fourth proportional to 602,160.56, 830,992.98 and 330,211.20 is: 455,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,160.56 : 830,992.98 = 330,211.20 : x
  2. Step 2: Convert to fraction form
    602,160.56/830,992.98 = 330,211.20/x
  3. Step 3: Cross multiply
    602,160.56x = 830,992.98 × 330,211.20
  4. Step 4: Simplify right side
    602,160.56x = 274,403,189,117.38
  5. Step 5: Solve for x
    x = 274,403,189,117.38/602,160.56
  6. Step 6: Final answer
    x = 455,697.71

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Double scale
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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.