Home / 1,298,153.62-1,791,520.79-782,070

Finding the Fourth Proportional to 1,298,153.62, 1,791,520.79 and 782,070

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Solution

The fourth proportional to 1,298,153.62, 1,791,520.79 and 782,070 is: 1,079,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,153.62 : 1,791,520.79 = 782,070 : x
  2. Step 2: Convert to fraction form
    1,298,153.62/1,791,520.79 = 782,070/x
  3. Step 3: Cross multiply
    1,298,153.62x = 1,791,520.79 × 782,070
  4. Step 4: Simplify right side
    1,298,153.62x = 1,401,094,664,235.30
  5. Step 5: Solve for x
    x = 1,401,094,664,235.30/1,298,153.62
  6. Step 6: Final answer
    x = 1,079,298.05

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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.