Home / 1,389,341.25-1,917,290.93-753,437.25

Finding the Fourth Proportional to 1,389,341.25, 1,917,290.93 and 753,437.25

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Solution

The fourth proportional to 1,389,341.25, 1,917,290.93 and 753,437.25 is: 1,039,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,341.25 : 1,917,290.93 = 753,437.25 : x
  2. Step 2: Convert to fraction form
    1,389,341.25/1,917,290.93 = 753,437.25/x
  3. Step 3: Cross multiply
    1,389,341.25x = 1,917,290.93 × 753,437.25
  4. Step 4: Simplify right side
    1,389,341.25x = 1,444,558,401,981.96
  5. Step 5: Solve for x
    x = 1,444,558,401,981.96/1,389,341.25
  6. Step 6: Final answer
    x = 1,039,743.41

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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.