Home / 1,090,680.57-1,636,768.22-380,708.55

Finding the Fourth Proportional to 1,090,680.57, 1,636,768.22 and 380,708.55

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Solution

The fourth proportional to 1,090,680.57, 1,636,768.22 and 380,708.55 is: 571,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,680.57 : 1,636,768.22 = 380,708.55 : x
  2. Step 2: Convert to fraction form
    1,090,680.57/1,636,768.22 = 380,708.55/x
  3. Step 3: Cross multiply
    1,090,680.57x = 1,636,768.22 × 380,708.55
  4. Step 4: Simplify right side
    1,090,680.57x = 623,131,653,818.74
  5. Step 5: Solve for x
    x = 623,131,653,818.74/1,090,680.57
  6. Step 6: Final answer
    x = 571,323.70

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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.