Home / 1,100,689.52-1,651,198.32-390,658.12

Finding the Fourth Proportional to 1,100,689.52, 1,651,198.32 and 390,658.12

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Solution

The fourth proportional to 1,100,689.52, 1,651,198.32 and 390,658.12 is: 586,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,689.52 : 1,651,198.32 = 390,658.12 : x
  2. Step 2: Convert to fraction form
    1,100,689.52/1,651,198.32 = 390,658.12/x
  3. Step 3: Cross multiply
    1,100,689.52x = 1,651,198.32 × 390,658.12
  4. Step 4: Simplify right side
    1,100,689.52x = 645,054,031,438.36
  5. Step 5: Solve for x
    x = 645,054,031,438.36/1,100,689.52
  6. Step 6: Final answer
    x = 586,045.40

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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.