Home / 1,284,962.24-1,926,087-431,224.40

Finding the Fourth Proportional to 1,284,962.24, 1,926,087 and 431,224.40

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Solution

The fourth proportional to 1,284,962.24, 1,926,087 and 431,224.40 is: 646,381.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,962.24 : 1,926,087 = 431,224.40 : x
  2. Step 2: Convert to fraction form
    1,284,962.24/1,926,087 = 431,224.40/x
  3. Step 3: Cross multiply
    1,284,962.24x = 1,926,087 × 431,224.40
  4. Step 4: Simplify right side
    1,284,962.24x = 830,575,710,922.80
  5. Step 5: Solve for x
    x = 830,575,710,922.80/1,284,962.24
  6. Step 6: Final answer
    x = 646,381.42

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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.