Home / 860,830.40-1,289,690.40-736,414.40

Finding the Fourth Proportional to 860,830.40, 1,289,690.40 and 736,414.40

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Solution

The fourth proportional to 860,830.40, 1,289,690.40 and 736,414.40 is: 1,103,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,830.40 : 1,289,690.40 = 736,414.40 : x
  2. Step 2: Convert to fraction form
    860,830.40/1,289,690.40 = 736,414.40/x
  3. Step 3: Cross multiply
    860,830.40x = 1,289,690.40 × 736,414.40
  4. Step 4: Simplify right side
    860,830.40x = 949,746,582,101.76
  5. Step 5: Solve for x
    x = 949,746,582,101.76/860,830.40
  6. Step 6: Final answer
    x = 1,103,291.17

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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.