Home / 1,426,300.19-1,968,205.05-781,674.65

Finding the Fourth Proportional to 1,426,300.19, 1,968,205.05 and 781,674.65

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Solution

The fourth proportional to 1,426,300.19, 1,968,205.05 and 781,674.65 is: 1,078,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,300.19 : 1,968,205.05 = 781,674.65 : x
  2. Step 2: Convert to fraction form
    1,426,300.19/1,968,205.05 = 781,674.65/x
  3. Step 3: Cross multiply
    1,426,300.19x = 1,968,205.05 × 781,674.65
  4. Step 4: Simplify right side
    1,426,300.19x = 1,538,495,993,586.98
  5. Step 5: Solve for x
    x = 1,538,495,993,586.98/1,426,300.19
  6. Step 6: Final answer
    x = 1,078,662.12

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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.