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Finding the Fourth Proportional to 710,549.92, 980,527.92 and 388,244.80

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Solution

The fourth proportional to 710,549.92, 980,527.92 and 388,244.80 is: 535,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,549.92 : 980,527.92 = 388,244.80 : x
  2. Step 2: Convert to fraction form
    710,549.92/980,527.92 = 388,244.80/x
  3. Step 3: Cross multiply
    710,549.92x = 980,527.92 × 388,244.80
  4. Step 4: Simplify right side
    710,549.92x = 380,684,866,194.82
  5. Step 5: Solve for x
    x = 380,684,866,194.82/710,549.92
  6. Step 6: Final answer
    x = 535,760.90

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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.