Home / 1,390,783.26-1,919,580.39-847,098.30

Finding the Fourth Proportional to 1,390,783.26, 1,919,580.39 and 847,098.30

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Solution

The fourth proportional to 1,390,783.26, 1,919,580.39 and 847,098.30 is: 1,169,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,783.26 : 1,919,580.39 = 847,098.30 : x
  2. Step 2: Convert to fraction form
    1,390,783.26/1,919,580.39 = 847,098.30/x
  3. Step 3: Cross multiply
    1,390,783.26x = 1,919,580.39 × 847,098.30
  4. Step 4: Simplify right side
    1,390,783.26x = 1,626,073,285,082.34
  5. Step 5: Solve for x
    x = 1,626,073,285,082.34/1,390,783.26
  6. Step 6: Final answer
    x = 1,169,178.07

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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.