Home / 818,210.85-1,225,052.72-417,989.85

Finding the Fourth Proportional to 818,210.85, 1,225,052.72 and 417,989.85

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Solution

The fourth proportional to 818,210.85, 1,225,052.72 and 417,989.85 is: 625,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,210.85 : 1,225,052.72 = 417,989.85 : x
  2. Step 2: Convert to fraction form
    818,210.85/1,225,052.72 = 417,989.85/x
  3. Step 3: Cross multiply
    818,210.85x = 1,225,052.72 × 417,989.85
  4. Step 4: Simplify right side
    818,210.85x = 512,059,602,674.89
  5. Step 5: Solve for x
    x = 512,059,602,674.89/818,210.85
  6. Step 6: Final answer
    x = 625,828.42

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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.