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Finding the Fourth Proportional to 711,394.80, 997,611.60 and 711,394.80

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Solution

The fourth proportional to 711,394.80, 997,611.60 and 711,394.80 is: 997,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,394.80 : 997,611.60 = 711,394.80 : x
  2. Step 2: Convert to fraction form
    711,394.80/997,611.60 = 711,394.80/x
  3. Step 3: Cross multiply
    711,394.80x = 997,611.60 × 711,394.80
  4. Step 4: Simplify right side
    711,394.80x = 709,695,704,659.68
  5. Step 5: Solve for x
    x = 709,695,704,659.68/711,394.80
  6. Step 6: Final answer
    x = 997,611.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.