Home / 1,681,430.82-2,320,430.52-917,526.30

Finding the Fourth Proportional to 1,681,430.82, 2,320,430.52 and 917,526.30

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Solution

The fourth proportional to 1,681,430.82, 2,320,430.52 and 917,526.30 is: 1,266,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,430.82 : 2,320,430.52 = 917,526.30 : x
  2. Step 2: Convert to fraction form
    1,681,430.82/2,320,430.52 = 917,526.30/x
  3. Step 3: Cross multiply
    1,681,430.82x = 2,320,430.52 × 917,526.30
  4. Step 4: Simplify right side
    1,681,430.82x = 2,129,056,029,422.68
  5. Step 5: Solve for x
    x = 2,129,056,029,422.68/1,681,430.82
  6. Step 6: Final answer
    x = 1,266,216.85

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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.