Home / 1,421,179.95-1,961,233.25-776,600.18

Finding the Fourth Proportional to 1,421,179.95, 1,961,233.25 and 776,600.18

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Solution

The fourth proportional to 1,421,179.95, 1,961,233.25 and 776,600.18 is: 1,071,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,179.95 : 1,961,233.25 = 776,600.18 : x
  2. Step 2: Convert to fraction form
    1,421,179.95/1,961,233.25 = 776,600.18/x
  3. Step 3: Cross multiply
    1,421,179.95x = 1,961,233.25 × 776,600.18
  4. Step 4: Simplify right side
    1,421,179.95x = 1,523,094,094,971.99
  5. Step 5: Solve for x
    x = 1,523,094,094,971.99/1,421,179.95
  6. Step 6: Final answer
    x = 1,071,710.94

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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.