Home / 1,429,316.89-1,972,200.25-809,117.84

Finding the Fourth Proportional to 1,429,316.89, 1,972,200.25 and 809,117.84

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Solution

The fourth proportional to 1,429,316.89, 1,972,200.25 and 809,117.84 is: 1,116,437.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,316.89 : 1,972,200.25 = 809,117.84 : x
  2. Step 2: Convert to fraction form
    1,429,316.89/1,972,200.25 = 809,117.84/x
  3. Step 3: Cross multiply
    1,429,316.89x = 1,972,200.25 × 809,117.84
  4. Step 4: Simplify right side
    1,429,316.89x = 1,595,742,412,269.36
  5. Step 5: Solve for x
    x = 1,595,742,412,269.36/1,429,316.89
  6. Step 6: Final answer
    x = 1,116,437.11

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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.