Home / 816,682.45-1,225,272.90-417,603.55

Finding the Fourth Proportional to 816,682.45, 1,225,272.90 and 417,603.55

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Solution

The fourth proportional to 816,682.45, 1,225,272.90 and 417,603.55 is: 626,532.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,682.45 : 1,225,272.90 = 417,603.55 : x
  2. Step 2: Convert to fraction form
    816,682.45/1,225,272.90 = 417,603.55/x
  3. Step 3: Cross multiply
    816,682.45x = 1,225,272.90 × 417,603.55
  4. Step 4: Simplify right side
    816,682.45x = 511,678,312,758.80
  5. Step 5: Solve for x
    x = 511,678,312,758.80/816,682.45
  6. Step 6: Final answer
    x = 626,532.76

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1.5x scale

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.