Home / 860,831.40-1,289,691.90-736,415.40

Finding the Fourth Proportional to 860,831.40, 1,289,691.90 and 736,415.40

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Solution

The fourth proportional to 860,831.40, 1,289,691.90 and 736,415.40 is: 1,103,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,831.40 : 1,289,691.90 = 736,415.40 : x
  2. Step 2: Convert to fraction form
    860,831.40/1,289,691.90 = 736,415.40/x
  3. Step 3: Cross multiply
    860,831.40x = 1,289,691.90 × 736,415.40
  4. Step 4: Simplify right side
    860,831.40x = 949,748,976,415.26
  5. Step 5: Solve for x
    x = 949,748,976,415.26/860,831.40
  6. Step 6: Final answer
    x = 1,103,292.67

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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.