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Finding the Fourth Proportional to 696,070.80, 972,399.60 and 696,070.80

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Solution

The fourth proportional to 696,070.80, 972,399.60 and 696,070.80 is: 972,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,070.80 : 972,399.60 = 696,070.80 : x
  2. Step 2: Convert to fraction form
    696,070.80/972,399.60 = 696,070.80/x
  3. Step 3: Cross multiply
    696,070.80x = 972,399.60 × 696,070.80
  4. Step 4: Simplify right side
    696,070.80x = 676,858,967,491.68
  5. Step 5: Solve for x
    x = 676,858,967,491.68/696,070.80
  6. Step 6: Final answer
    x = 972,399.60

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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.