Home / 1,262,805.76-1,894,225.05-421,357.51

Finding the Fourth Proportional to 1,262,805.76, 1,894,225.05 and 421,357.51

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Solution

The fourth proportional to 1,262,805.76, 1,894,225.05 and 421,357.51 is: 632,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,805.76 : 1,894,225.05 = 421,357.51 : x
  2. Step 2: Convert to fraction form
    1,262,805.76/1,894,225.05 = 421,357.51/x
  3. Step 3: Cross multiply
    1,262,805.76x = 1,894,225.05 × 421,357.51
  4. Step 4: Simplify right side
    1,262,805.76x = 798,145,950,447.63
  5. Step 5: Solve for x
    x = 798,145,950,447.63/1,262,805.76
  6. Step 6: Final answer
    x = 632,041.74

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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.