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Finding the Fourth Proportional to 602,081.72, 830,899.05 and 360,318.32

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Solution

The fourth proportional to 602,081.72, 830,899.05 and 360,318.32 is: 497,255.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,081.72 : 830,899.05 = 360,318.32 : x
  2. Step 2: Convert to fraction form
    602,081.72/830,899.05 = 360,318.32/x
  3. Step 3: Cross multiply
    602,081.72x = 830,899.05 × 360,318.32
  4. Step 4: Simplify right side
    602,081.72x = 299,388,149,785.60
  5. Step 5: Solve for x
    x = 299,388,149,785.60/602,081.72
  6. Step 6: Final answer
    x = 497,255.01

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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.