Home / 1,421,075.82-1,961,026.80-776,518.32

Finding the Fourth Proportional to 1,421,075.82, 1,961,026.80 and 776,518.32

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Solution

The fourth proportional to 1,421,075.82, 1,961,026.80 and 776,518.32 is: 1,071,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,075.82 : 1,961,026.80 = 776,518.32 : x
  2. Step 2: Convert to fraction form
    1,421,075.82/1,961,026.80 = 776,518.32/x
  3. Step 3: Cross multiply
    1,421,075.82x = 1,961,026.80 × 776,518.32
  4. Step 4: Simplify right side
    1,421,075.82x = 1,522,773,236,210.98
  5. Step 5: Solve for x
    x = 1,522,773,236,210.98/1,421,075.82
  6. Step 6: Final answer
    x = 1,071,563.68

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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.