Home / 657,478.32-985,394.19-353,124.54

Finding the Fourth Proportional to 657,478.32, 985,394.19 and 353,124.54

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Solution

The fourth proportional to 657,478.32, 985,394.19 and 353,124.54 is: 529,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,478.32 : 985,394.19 = 353,124.54 : x
  2. Step 2: Convert to fraction form
    657,478.32/985,394.19 = 353,124.54/x
  3. Step 3: Cross multiply
    657,478.32x = 985,394.19 × 353,124.54
  4. Step 4: Simplify right side
    657,478.32x = 347,966,870,062.42
  5. Step 5: Solve for x
    x = 347,966,870,062.42/657,478.32
  6. Step 6: Final answer
    x = 529,244.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.