Home / 1,681,155-2,319,993.90-1,077,543

Finding the Fourth Proportional to 1,681,155, 2,319,993.90 and 1,077,543

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Solution

The fourth proportional to 1,681,155, 2,319,993.90 and 1,077,543 is: 1,487,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,155 : 2,319,993.90 = 1,077,543 : x
  2. Step 2: Convert to fraction form
    1,681,155/2,319,993.90 = 1,077,543/x
  3. Step 3: Cross multiply
    1,681,155x = 2,319,993.90 × 1,077,543
  4. Step 4: Simplify right side
    1,681,155x = 2,499,893,186,987.70
  5. Step 5: Solve for x
    x = 2,499,893,186,987.70/1,681,155
  6. Step 6: Final answer
    x = 1,487,009.34

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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.