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Finding the Fourth Proportional to 648,117.60, 970,426.80 and 648,117.60

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Solution

The fourth proportional to 648,117.60, 970,426.80 and 648,117.60 is: 970,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,117.60 : 970,426.80 = 648,117.60 : x
  2. Step 2: Convert to fraction form
    648,117.60/970,426.80 = 648,117.60/x
  3. Step 3: Cross multiply
    648,117.60x = 970,426.80 × 648,117.60
  4. Step 4: Simplify right side
    648,117.60x = 628,950,688,591.68
  5. Step 5: Solve for x
    x = 628,950,688,591.68/648,117.60
  6. Step 6: Final answer
    x = 970,426.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.