Home / 816,639.57-1,225,208.03-417,560.67

Finding the Fourth Proportional to 816,639.57, 1,225,208.03 and 417,560.67

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Solution

The fourth proportional to 816,639.57, 1,225,208.03 and 417,560.67 is: 626,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,639.57 : 1,225,208.03 = 417,560.67 : x
  2. Step 2: Convert to fraction form
    816,639.57/1,225,208.03 = 417,560.67/x
  3. Step 3: Cross multiply
    816,639.57x = 1,225,208.03 × 417,560.67
  4. Step 4: Simplify right side
    816,639.57x = 511,598,683,808.38
  5. Step 5: Solve for x
    x = 511,598,683,808.38/816,639.57
  6. Step 6: Final answer
    x = 626,468.15

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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.