Home / 705,705.54-1,058,669.07-421,716.84

Finding the Fourth Proportional to 705,705.54, 1,058,669.07 and 421,716.84

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Solution

The fourth proportional to 705,705.54, 1,058,669.07 and 421,716.84 is: 632,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,705.54 : 1,058,669.07 = 421,716.84 : x
  2. Step 2: Convert to fraction form
    705,705.54/1,058,669.07 = 421,716.84/x
  3. Step 3: Cross multiply
    705,705.54x = 1,058,669.07 × 421,716.84
  4. Step 4: Simplify right side
    705,705.54x = 446,458,574,806.14
  5. Step 5: Solve for x
    x = 446,458,574,806.14/705,705.54
  6. Step 6: Final answer
    x = 632,641.45

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1.5x scale

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.