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Finding the Fourth Proportional to 648,302.60, 970,485.60 and 577,443.80

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Solution

The fourth proportional to 648,302.60, 970,485.60 and 577,443.80 is: 864,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,302.60 : 970,485.60 = 577,443.80 : x
  2. Step 2: Convert to fraction form
    648,302.60/970,485.60 = 577,443.80/x
  3. Step 3: Cross multiply
    648,302.60x = 970,485.60 × 577,443.80
  4. Step 4: Simplify right side
    648,302.60x = 560,400,892,709.28
  5. Step 5: Solve for x
    x = 560,400,892,709.28/648,302.60
  6. Step 6: Final answer
    x = 864,412.53

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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.