Home / 1,238,429.30-1,857,910.57-385,482.83

Finding the Fourth Proportional to 1,238,429.30, 1,857,910.57 and 385,482.83

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Solution

The fourth proportional to 1,238,429.30, 1,857,910.57 and 385,482.83 is: 578,307.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,429.30 : 1,857,910.57 = 385,482.83 : x
  2. Step 2: Convert to fraction form
    1,238,429.30/1,857,910.57 = 385,482.83/x
  3. Step 3: Cross multiply
    1,238,429.30x = 1,857,910.57 × 385,482.83
  4. Step 4: Simplify right side
    1,238,429.30x = 716,192,614,157.25
  5. Step 5: Solve for x
    x = 716,192,614,157.25/1,238,429.30
  6. Step 6: Final answer
    x = 578,307.23

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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.