Home / 1,556,430.39-2,148,352.47-912,058.11

Finding the Fourth Proportional to 1,556,430.39, 2,148,352.47 and 912,058.11

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Solution

The fourth proportional to 1,556,430.39, 2,148,352.47 and 912,058.11 is: 1,258,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,430.39 : 2,148,352.47 = 912,058.11 : x
  2. Step 2: Convert to fraction form
    1,556,430.39/2,148,352.47 = 912,058.11/x
  3. Step 3: Cross multiply
    1,556,430.39x = 2,148,352.47 × 912,058.11
  4. Step 4: Simplify right side
    1,556,430.39x = 1,959,422,293,402.03
  5. Step 5: Solve for x
    x = 1,959,422,293,402.03/1,556,430.39
  6. Step 6: Final answer
    x = 1,258,920.61

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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.