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Finding the Fourth Proportional to 710,325.79, 980,237.23 and 388,027.60

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Solution

The fourth proportional to 710,325.79, 980,237.23 and 388,027.60 is: 535,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,325.79 : 980,237.23 = 388,027.60 : x
  2. Step 2: Convert to fraction form
    710,325.79/980,237.23 = 388,027.60/x
  3. Step 3: Cross multiply
    710,325.79x = 980,237.23 × 388,027.60
  4. Step 4: Simplify right side
    710,325.79x = 380,359,096,366.89
  5. Step 5: Solve for x
    x = 380,359,096,366.89/710,325.79
  6. Step 6: Final answer
    x = 535,471.33

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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.