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Finding the Fourth Proportional to 888,015.80, 1,330,492.80 and 413,728.40

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Solution

The fourth proportional to 888,015.80, 1,330,492.80 and 413,728.40 is: 619,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,015.80 : 1,330,492.80 = 413,728.40 : x
  2. Step 2: Convert to fraction form
    888,015.80/1,330,492.80 = 413,728.40/x
  3. Step 3: Cross multiply
    888,015.80x = 1,330,492.80 × 413,728.40
  4. Step 4: Simplify right side
    888,015.80x = 550,462,657,355.52
  5. Step 5: Solve for x
    x = 550,462,657,355.52/888,015.80
  6. Step 6: Final answer
    x = 619,879.35

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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.