Home / 860,351.13-1,290,526.56-409,705.65

Finding the Fourth Proportional to 860,351.13, 1,290,526.56 and 409,705.65

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Solution

The fourth proportional to 860,351.13, 1,290,526.56 and 409,705.65 is: 614,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,351.13 : 1,290,526.56 = 409,705.65 : x
  2. Step 2: Convert to fraction form
    860,351.13/1,290,526.56 = 409,705.65/x
  3. Step 3: Cross multiply
    860,351.13x = 1,290,526.56 × 409,705.65
  4. Step 4: Simplify right side
    860,351.13x = 528,736,023,107.06
  5. Step 5: Solve for x
    x = 528,736,023,107.06/860,351.13
  6. Step 6: Final answer
    x = 614,558.41

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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.