Home / 1,238,431.30-1,857,913.57-385,484.83

Finding the Fourth Proportional to 1,238,431.30, 1,857,913.57 and 385,484.83

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Solution

The fourth proportional to 1,238,431.30, 1,857,913.57 and 385,484.83 is: 578,310.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,431.30 : 1,857,913.57 = 385,484.83 : x
  2. Step 2: Convert to fraction form
    1,238,431.30/1,857,913.57 = 385,484.83/x
  3. Step 3: Cross multiply
    1,238,431.30x = 1,857,913.57 × 385,484.83
  4. Step 4: Simplify right side
    1,238,431.30x = 716,197,496,686.14
  5. Step 5: Solve for x
    x = 716,197,496,686.14/1,238,431.30
  6. Step 6: Final answer
    x = 578,310.24

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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.