Home / 1,421,520.12-1,961,644.50-776,935.08

Finding the Fourth Proportional to 1,421,520.12, 1,961,644.50 and 776,935.08

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Solution

The fourth proportional to 1,421,520.12, 1,961,644.50 and 776,935.08 is: 1,072,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,520.12 : 1,961,644.50 = 776,935.08 : x
  2. Step 2: Convert to fraction form
    1,421,520.12/1,961,644.50 = 776,935.08/x
  3. Step 3: Cross multiply
    1,421,520.12x = 1,961,644.50 × 776,935.08
  4. Step 4: Simplify right side
    1,421,520.12x = 1,524,070,426,539.06
  5. Step 5: Solve for x
    x = 1,524,070,426,539.06/1,421,520.12
  6. Step 6: Final answer
    x = 1,072,141.30

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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.