Home / 1,396,390.80-2,094,706.08-385,512.60

Finding the Fourth Proportional to 1,396,390.80, 2,094,706.08 and 385,512.60

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Solution

The fourth proportional to 1,396,390.80, 2,094,706.08 and 385,512.60 is: 578,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,390.80 : 2,094,706.08 = 385,512.60 : x
  2. Step 2: Convert to fraction form
    1,396,390.80/2,094,706.08 = 385,512.60/x
  3. Step 3: Cross multiply
    1,396,390.80x = 2,094,706.08 × 385,512.60
  4. Step 4: Simplify right side
    1,396,390.80x = 807,535,587,136.61
  5. Step 5: Solve for x
    x = 807,535,587,136.61/1,396,390.80
  6. Step 6: Final answer
    x = 578,302.00

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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.