Home / 1,225,315.08-1,838,221.74-426,658.89

Finding the Fourth Proportional to 1,225,315.08, 1,838,221.74 and 426,658.89

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Solution

The fourth proportional to 1,225,315.08, 1,838,221.74 and 426,658.89 is: 640,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,315.08 : 1,838,221.74 = 426,658.89 : x
  2. Step 2: Convert to fraction form
    1,225,315.08/1,838,221.74 = 426,658.89/x
  3. Step 3: Cross multiply
    1,225,315.08x = 1,838,221.74 × 426,658.89
  4. Step 4: Simplify right side
    1,225,315.08x = 784,293,647,162.27
  5. Step 5: Solve for x
    x = 784,293,647,162.27/1,225,315.08
  6. Step 6: Final answer
    x = 640,075.08

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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.