Home / 1,390,095.99-2,085,315.72-491,352.39

Finding the Fourth Proportional to 1,390,095.99, 2,085,315.72 and 491,352.39

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Solution

The fourth proportional to 1,390,095.99, 2,085,315.72 and 491,352.39 is: 737,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,095.99 : 2,085,315.72 = 491,352.39 : x
  2. Step 2: Convert to fraction form
    1,390,095.99/2,085,315.72 = 491,352.39/x
  3. Step 3: Cross multiply
    1,390,095.99x = 2,085,315.72 × 491,352.39
  4. Step 4: Simplify right side
    1,390,095.99x = 1,024,624,862,926.57
  5. Step 5: Solve for x
    x = 1,024,624,862,926.57/1,390,095.99
  6. Step 6: Final answer
    x = 737,089.29

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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.