Home / 1,278,678.69-1,764,567.90-705,718.85

Finding the Fourth Proportional to 1,278,678.69, 1,764,567.90 and 705,718.85

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Solution

The fourth proportional to 1,278,678.69, 1,764,567.90 and 705,718.85 is: 973,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,678.69 : 1,764,567.90 = 705,718.85 : x
  2. Step 2: Convert to fraction form
    1,278,678.69/1,764,567.90 = 705,718.85/x
  3. Step 3: Cross multiply
    1,278,678.69x = 1,764,567.90 × 705,718.85
  4. Step 4: Simplify right side
    1,278,678.69x = 1,245,288,820,312.08
  5. Step 5: Solve for x
    x = 1,245,288,820,312.08/1,278,678.69
  6. Step 6: Final answer
    x = 973,887.21

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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.