Home / 1,424,595.60-1,966,129.20-812,608.20

Finding the Fourth Proportional to 1,424,595.60, 1,966,129.20 and 812,608.20

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Solution

The fourth proportional to 1,424,595.60, 1,966,129.20 and 812,608.20 is: 1,121,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,595.60 : 1,966,129.20 = 812,608.20 : x
  2. Step 2: Convert to fraction form
    1,424,595.60/1,966,129.20 = 812,608.20/x
  3. Step 3: Cross multiply
    1,424,595.60x = 1,966,129.20 × 812,608.20
  4. Step 4: Simplify right side
    1,424,595.60x = 1,597,692,710,179.44
  5. Step 5: Solve for x
    x = 1,597,692,710,179.44/1,424,595.60
  6. Step 6: Final answer
    x = 1,121,506.14

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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.