Home / 1,386,684.80-1,913,590.68-774,800

Finding the Fourth Proportional to 1,386,684.80, 1,913,590.68 and 774,800

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Solution

The fourth proportional to 1,386,684.80, 1,913,590.68 and 774,800 is: 1,069,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,684.80 : 1,913,590.68 = 774,800 : x
  2. Step 2: Convert to fraction form
    1,386,684.80/1,913,590.68 = 774,800/x
  3. Step 3: Cross multiply
    1,386,684.80x = 1,913,590.68 × 774,800
  4. Step 4: Simplify right side
    1,386,684.80x = 1,482,650,058,864
  5. Step 5: Solve for x
    x = 1,482,650,058,864/1,386,684.80
  6. Step 6: Final answer
    x = 1,069,204.81

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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.