Home / 1,280,386.13-1,766,968.51-707,463.23

Finding the Fourth Proportional to 1,280,386.13, 1,766,968.51 and 707,463.23

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Solution

The fourth proportional to 1,280,386.13, 1,766,968.51 and 707,463.23 is: 976,318.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,386.13 : 1,766,968.51 = 707,463.23 : x
  2. Step 2: Convert to fraction form
    1,280,386.13/1,766,968.51 = 707,463.23/x
  3. Step 3: Cross multiply
    1,280,386.13x = 1,766,968.51 × 707,463.23
  4. Step 4: Simplify right side
    1,280,386.13x = 1,250,065,249,392.89
  5. Step 5: Solve for x
    x = 1,250,065,249,392.89/1,280,386.13
  6. Step 6: Final answer
    x = 976,318.96

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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.