Home / 353,907.20-531,897.60-347,686.40

Finding the Fourth Proportional to 353,907.20, 531,897.60 and 347,686.40

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Solution

The fourth proportional to 353,907.20, 531,897.60 and 347,686.40 is: 522,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,907.20 : 531,897.60 = 347,686.40 : x
  2. Step 2: Convert to fraction form
    353,907.20/531,897.60 = 347,686.40/x
  3. Step 3: Cross multiply
    353,907.20x = 531,897.60 × 347,686.40
  4. Step 4: Simplify right side
    353,907.20x = 184,933,561,712.64
  5. Step 5: Solve for x
    x = 184,933,561,712.64/353,907.20
  6. Step 6: Final answer
    x = 522,548.18

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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.