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Finding the Fourth Proportional to 616,602.32, 851,019.48 and 358,559.12

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Solution

The fourth proportional to 616,602.32, 851,019.48 and 358,559.12 is: 494,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,602.32 : 851,019.48 = 358,559.12 : x
  2. Step 2: Convert to fraction form
    616,602.32/851,019.48 = 358,559.12/x
  3. Step 3: Cross multiply
    616,602.32x = 851,019.48 × 358,559.12
  4. Step 4: Simplify right side
    616,602.32x = 305,140,795,851.66
  5. Step 5: Solve for x
    x = 305,140,795,851.66/616,602.32
  6. Step 6: Final answer
    x = 494,874.55

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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.