Home / 662,582.08-991,909.68-409,047.36

Finding the Fourth Proportional to 662,582.08, 991,909.68 and 409,047.36

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Solution

The fourth proportional to 662,582.08, 991,909.68 and 409,047.36 is: 612,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,582.08 : 991,909.68 = 409,047.36 : x
  2. Step 2: Convert to fraction form
    662,582.08/991,909.68 = 409,047.36/x
  3. Step 3: Cross multiply
    662,582.08x = 991,909.68 × 409,047.36
  4. Step 4: Simplify right side
    662,582.08x = 405,738,035,962.45
  5. Step 5: Solve for x
    x = 405,738,035,962.45/662,582.08
  6. Step 6: Final answer
    x = 612,358.90

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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.