Home / 2,631,615.40-3,947,423.10-1,686,831.40

Finding the Fourth Proportional to 2,631,615.40, 3,947,423.10 and 1,686,831.40

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Solution

The fourth proportional to 2,631,615.40, 3,947,423.10 and 1,686,831.40 is: 2,530,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,615.40 : 3,947,423.10 = 1,686,831.40 : x
  2. Step 2: Convert to fraction form
    2,631,615.40/3,947,423.10 = 1,686,831.40/x
  3. Step 3: Cross multiply
    2,631,615.40x = 3,947,423.10 × 1,686,831.40
  4. Step 4: Simplify right side
    2,631,615.40x = 6,658,637,234,165.34
  5. Step 5: Solve for x
    x = 6,658,637,234,165.34/2,631,615.40
  6. Step 6: Final answer
    x = 2,530,247.10

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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.