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Finding the Fourth Proportional to 648,394.02, 972,590.63 and 360,388.80

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Solution

The fourth proportional to 648,394.02, 972,590.63 and 360,388.80 is: 540,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,394.02 : 972,590.63 = 360,388.80 : x
  2. Step 2: Convert to fraction form
    648,394.02/972,590.63 = 360,388.80/x
  3. Step 3: Cross multiply
    648,394.02x = 972,590.63 × 360,388.80
  4. Step 4: Simplify right side
    648,394.02x = 350,510,768,235
  5. Step 5: Solve for x
    x = 350,510,768,235/648,394.02
  6. Step 6: Final answer
    x = 540,582.97

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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.