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Finding the Fourth Proportional to 648,010.40, 968,905.20 and 480,048.80

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Solution

The fourth proportional to 648,010.40, 968,905.20 and 480,048.80 is: 717,769.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,010.40 : 968,905.20 = 480,048.80 : x
  2. Step 2: Convert to fraction form
    648,010.40/968,905.20 = 480,048.80/x
  3. Step 3: Cross multiply
    648,010.40x = 968,905.20 × 480,048.80
  4. Step 4: Simplify right side
    648,010.40x = 465,121,778,573.76
  5. Step 5: Solve for x
    x = 465,121,778,573.76/648,010.40
  6. Step 6: Final answer
    x = 717,769.00

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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.