Home / 810,531.65-1,119,049.55-505,056.81

Finding the Fourth Proportional to 810,531.65, 1,119,049.55 and 505,056.81

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Solution

The fourth proportional to 810,531.65, 1,119,049.55 and 505,056.81 is: 697,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,531.65 : 1,119,049.55 = 505,056.81 : x
  2. Step 2: Convert to fraction form
    810,531.65/1,119,049.55 = 505,056.81/x
  3. Step 3: Cross multiply
    810,531.65x = 1,119,049.55 × 505,056.81
  4. Step 4: Simplify right side
    810,531.65x = 565,183,593,429.65
  5. Step 5: Solve for x
    x = 565,183,593,429.65/810,531.65
  6. Step 6: Final answer
    x = 697,299.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.