Home / 963,381.61-1,328,206.30-828,860.55

Finding the Fourth Proportional to 963,381.61, 1,328,206.30 and 828,860.55

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Solution

The fourth proportional to 963,381.61, 1,328,206.30 and 828,860.55 is: 1,142,743.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,381.61 : 1,328,206.30 = 828,860.55 : x
  2. Step 2: Convert to fraction form
    963,381.61/1,328,206.30 = 828,860.55/x
  3. Step 3: Cross multiply
    963,381.61x = 1,328,206.30 × 828,860.55
  4. Step 4: Simplify right side
    963,381.61x = 1,100,897,804,331.47
  5. Step 5: Solve for x
    x = 1,100,897,804,331.47/963,381.61
  6. Step 6: Final answer
    x = 1,142,743.22

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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.