Home / 1,312,429.82-1,968,808.95-513,608.22

Finding the Fourth Proportional to 1,312,429.82, 1,968,808.95 and 513,608.22

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Solution

The fourth proportional to 1,312,429.82, 1,968,808.95 and 513,608.22 is: 770,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,429.82 : 1,968,808.95 = 513,608.22 : x
  2. Step 2: Convert to fraction form
    1,312,429.82/1,968,808.95 = 513,608.22/x
  3. Step 3: Cross multiply
    1,312,429.82x = 1,968,808.95 × 513,608.22
  4. Step 4: Simplify right side
    1,312,429.82x = 1,011,196,460,329.57
  5. Step 5: Solve for x
    x = 1,011,196,460,329.57/1,312,429.82
  6. Step 6: Final answer
    x = 770,476.60

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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.