Home / 1,296,400.80-1,943,564.40-547,831.20

Finding the Fourth Proportional to 1,296,400.80, 1,943,564.40 and 547,831.20

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Solution

The fourth proportional to 1,296,400.80, 1,943,564.40 and 547,831.20 is: 821,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,400.80 : 1,943,564.40 = 547,831.20 : x
  2. Step 2: Convert to fraction form
    1,296,400.80/1,943,564.40 = 547,831.20/x
  3. Step 3: Cross multiply
    1,296,400.80x = 1,943,564.40 × 547,831.20
  4. Step 4: Simplify right side
    1,296,400.80x = 1,064,745,217,529.28
  5. Step 5: Solve for x
    x = 1,064,745,217,529.28/1,296,400.80
  6. Step 6: Final answer
    x = 821,308.67

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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.