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Finding the Fourth Proportional to 710,147.25, 980,032.37 and 408,341.25

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Solution

The fourth proportional to 710,147.25, 980,032.37 and 408,341.25 is: 563,527.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,147.25 : 980,032.37 = 408,341.25 : x
  2. Step 2: Convert to fraction form
    710,147.25/980,032.37 = 408,341.25/x
  3. Step 3: Cross multiply
    710,147.25x = 980,032.37 × 408,341.25
  4. Step 4: Simplify right side
    710,147.25x = 400,187,640,964.56
  5. Step 5: Solve for x
    x = 400,187,640,964.56/710,147.25
  6. Step 6: Final answer
    x = 563,527.69

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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.