Home / 1,312,507.32-1,968,967.50-459,839.76

Finding the Fourth Proportional to 1,312,507.32, 1,968,967.50 and 459,839.76

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Solution

The fourth proportional to 1,312,507.32, 1,968,967.50 and 459,839.76 is: 689,831.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,507.32 : 1,968,967.50 = 459,839.76 : x
  2. Step 2: Convert to fraction form
    1,312,507.32/1,968,967.50 = 459,839.76/x
  3. Step 3: Cross multiply
    1,312,507.32x = 1,968,967.50 × 459,839.76
  4. Step 4: Simplify right side
    1,312,507.32x = 905,409,542,647.80
  5. Step 5: Solve for x
    x = 905,409,542,647.80/1,312,507.32
  6. Step 6: Final answer
    x = 689,831.99

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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.