Home / 1,280,369.49-1,766,980.76-707,397.36

Finding the Fourth Proportional to 1,280,369.49, 1,766,980.76 and 707,397.36

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Solution

The fourth proportional to 1,280,369.49, 1,766,980.76 and 707,397.36 is: 976,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,369.49 : 1,766,980.76 = 707,397.36 : x
  2. Step 2: Convert to fraction form
    1,280,369.49/1,766,980.76 = 707,397.36/x
  3. Step 3: Cross multiply
    1,280,369.49x = 1,766,980.76 × 707,397.36
  4. Step 4: Simplify right side
    1,280,369.49x = 1,249,957,521,257.81
  5. Step 5: Solve for x
    x = 1,249,957,521,257.81/1,280,369.49
  6. Step 6: Final answer
    x = 976,247.51

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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.