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Finding the Fourth Proportional to 656,430.40, 984,645.60 and 656,430.40

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Solution

The fourth proportional to 656,430.40, 984,645.60 and 656,430.40 is: 984,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,430.40 : 984,645.60 = 656,430.40 : x
  2. Step 2: Convert to fraction form
    656,430.40/984,645.60 = 656,430.40/x
  3. Step 3: Cross multiply
    656,430.40x = 984,645.60 × 656,430.40
  4. Step 4: Simplify right side
    656,430.40x = 646,351,305,066.24
  5. Step 5: Solve for x
    x = 646,351,305,066.24/656,430.40
  6. Step 6: Final answer
    x = 984,645.60

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Double scale
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Similar ratio
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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.