Home / 1,420,583.65-1,960,448.40-776,045.36

Finding the Fourth Proportional to 1,420,583.65, 1,960,448.40 and 776,045.36

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Solution

The fourth proportional to 1,420,583.65, 1,960,448.40 and 776,045.36 is: 1,070,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,583.65 : 1,960,448.40 = 776,045.36 : x
  2. Step 2: Convert to fraction form
    1,420,583.65/1,960,448.40 = 776,045.36/x
  3. Step 3: Cross multiply
    1,420,583.65x = 1,960,448.40 × 776,045.36
  4. Step 4: Simplify right side
    1,420,583.65x = 1,521,396,878,213.02
  5. Step 5: Solve for x
    x = 1,521,396,878,213.02/1,420,583.65
  6. Step 6: Final answer
    x = 1,070,966.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.