Home / 1,259,315.40-1,888,973.10-417,894.60

Finding the Fourth Proportional to 1,259,315.40, 1,888,973.10 and 417,894.60

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Solution

The fourth proportional to 1,259,315.40, 1,888,973.10 and 417,894.60 is: 626,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,315.40 : 1,888,973.10 = 417,894.60 : x
  2. Step 2: Convert to fraction form
    1,259,315.40/1,888,973.10 = 417,894.60/x
  3. Step 3: Cross multiply
    1,259,315.40x = 1,888,973.10 × 417,894.60
  4. Step 4: Simplify right side
    1,259,315.40x = 789,391,658,035.26
  5. Step 5: Solve for x
    x = 789,391,658,035.26/1,259,315.40
  6. Step 6: Final answer
    x = 626,841.90

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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.