Home / 1,556,260-2,147,803.92-912,221.32

Finding the Fourth Proportional to 1,556,260, 2,147,803.92 and 912,221.32

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Solution

The fourth proportional to 1,556,260, 2,147,803.92 and 912,221.32 is: 1,258,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,260 : 2,147,803.92 = 912,221.32 : x
  2. Step 2: Convert to fraction form
    1,556,260/2,147,803.92 = 912,221.32/x
  3. Step 3: Cross multiply
    1,556,260x = 2,147,803.92 × 912,221.32
  4. Step 4: Simplify right side
    1,556,260x = 1,959,272,527,003.57
  5. Step 5: Solve for x
    x = 1,959,272,527,003.57/1,556,260
  6. Step 6: Final answer
    x = 1,258,962.21

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.