Home / 648,015.80-972,023.70-448,280.60

Finding the Fourth Proportional to 648,015.80, 972,023.70 and 448,280.60

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Solution

The fourth proportional to 648,015.80, 972,023.70 and 448,280.60 is: 672,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,015.80 : 972,023.70 = 448,280.60 : x
  2. Step 2: Convert to fraction form
    648,015.80/972,023.70 = 448,280.60/x
  3. Step 3: Cross multiply
    648,015.80x = 972,023.70 × 448,280.60
  4. Step 4: Simplify right side
    648,015.80x = 435,739,367,450.22
  5. Step 5: Solve for x
    x = 435,739,367,450.22/648,015.80
  6. Step 6: Final answer
    x = 672,420.90

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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.