Home / 1,296,547.40-1,943,265.90-665,136.20

Finding the Fourth Proportional to 1,296,547.40, 1,943,265.90 and 665,136.20

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Solution

The fourth proportional to 1,296,547.40, 1,943,265.90 and 665,136.20 is: 996,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,547.40 : 1,943,265.90 = 665,136.20 : x
  2. Step 2: Convert to fraction form
    1,296,547.40/1,943,265.90 = 665,136.20/x
  3. Step 3: Cross multiply
    1,296,547.40x = 1,943,265.90 × 665,136.20
  4. Step 4: Simplify right side
    1,296,547.40x = 1,292,536,496,315.58
  5. Step 5: Solve for x
    x = 1,292,536,496,315.58/1,296,547.40
  6. Step 6: Final answer
    x = 996,906.47

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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.