Home / 1,293,887.80-1,940,831.70-1,157,030.20

Finding the Fourth Proportional to 1,293,887.80, 1,940,831.70 and 1,157,030.20

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Solution

The fourth proportional to 1,293,887.80, 1,940,831.70 and 1,157,030.20 is: 1,735,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,887.80 : 1,940,831.70 = 1,157,030.20 : x
  2. Step 2: Convert to fraction form
    1,293,887.80/1,940,831.70 = 1,157,030.20/x
  3. Step 3: Cross multiply
    1,293,887.80x = 1,940,831.70 × 1,157,030.20
  4. Step 4: Simplify right side
    1,293,887.80x = 2,245,600,890,017.34
  5. Step 5: Solve for x
    x = 2,245,600,890,017.34/1,293,887.80
  6. Step 6: Final answer
    x = 1,735,545.30

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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.