Home / 1,145,670.39-1,581,075.18-636,372.77

Finding the Fourth Proportional to 1,145,670.39, 1,581,075.18 and 636,372.77

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Solution

The fourth proportional to 1,145,670.39, 1,581,075.18 and 636,372.77 is: 878,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,670.39 : 1,581,075.18 = 636,372.77 : x
  2. Step 2: Convert to fraction form
    1,145,670.39/1,581,075.18 = 636,372.77/x
  3. Step 3: Cross multiply
    1,145,670.39x = 1,581,075.18 × 636,372.77
  4. Step 4: Simplify right side
    1,145,670.39x = 1,006,153,183,969.47
  5. Step 5: Solve for x
    x = 1,006,153,183,969.47/1,145,670.39
  6. Step 6: Final answer
    x = 878,222.21

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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.