Home / 1,409,256.40-2,112,329.40-778,622.80

Finding the Fourth Proportional to 1,409,256.40, 2,112,329.40 and 778,622.80

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Solution

The fourth proportional to 1,409,256.40, 2,112,329.40 and 778,622.80 is: 1,167,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,256.40 : 2,112,329.40 = 778,622.80 : x
  2. Step 2: Convert to fraction form
    1,409,256.40/2,112,329.40 = 778,622.80/x
  3. Step 3: Cross multiply
    1,409,256.40x = 2,112,329.40 × 778,622.80
  4. Step 4: Simplify right side
    1,409,256.40x = 1,644,707,831,950.32
  5. Step 5: Solve for x
    x = 1,644,707,831,950.32/1,409,256.40
  6. Step 6: Final answer
    x = 1,167,074.94

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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.