Home / 887,943.80-1,330,384.80-413,656.40

Finding the Fourth Proportional to 887,943.80, 1,330,384.80 and 413,656.40

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Solution

The fourth proportional to 887,943.80, 1,330,384.80 and 413,656.40 is: 619,771.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,943.80 : 1,330,384.80 = 413,656.40 : x
  2. Step 2: Convert to fraction form
    887,943.80/1,330,384.80 = 413,656.40/x
  3. Step 3: Cross multiply
    887,943.80x = 1,330,384.80 × 413,656.40
  4. Step 4: Simplify right side
    887,943.80x = 550,322,186,982.72
  5. Step 5: Solve for x
    x = 550,322,186,982.72/887,943.80
  6. Step 6: Final answer
    x = 619,771.42

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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.