Home / 1,274,628.51-1,910,703.47-421,115.31

Finding the Fourth Proportional to 1,274,628.51, 1,910,703.47 and 421,115.31

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Solution

The fourth proportional to 1,274,628.51, 1,910,703.47 and 421,115.31 is: 631,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,628.51 : 1,910,703.47 = 421,115.31 : x
  2. Step 2: Convert to fraction form
    1,274,628.51/1,910,703.47 = 421,115.31/x
  3. Step 3: Cross multiply
    1,274,628.51x = 1,910,703.47 × 421,115.31
  4. Step 4: Simplify right side
    1,274,628.51x = 804,626,481,981.55
  5. Step 5: Solve for x
    x = 804,626,481,981.55/1,274,628.51
  6. Step 6: Final answer
    x = 631,263.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.