Home / 1,211,587.49-1,817,597.39-402,020.57

Finding the Fourth Proportional to 1,211,587.49, 1,817,597.39 and 402,020.57

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Solution

The fourth proportional to 1,211,587.49, 1,817,597.39 and 402,020.57 is: 603,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,587.49 : 1,817,597.39 = 402,020.57 : x
  2. Step 2: Convert to fraction form
    1,211,587.49/1,817,597.39 = 402,020.57/x
  3. Step 3: Cross multiply
    1,211,587.49x = 1,817,597.39 × 402,020.57
  4. Step 4: Simplify right side
    1,211,587.49x = 730,711,527,660.22
  5. Step 5: Solve for x
    x = 730,711,527,660.22/1,211,587.49
  6. Step 6: Final answer
    x = 603,102.57

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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.