Home / 1,298,496.60-1,791,930.78-709,807.86

Finding the Fourth Proportional to 1,298,496.60, 1,791,930.78 and 709,807.86

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Solution

The fourth proportional to 1,298,496.60, 1,791,930.78 and 709,807.86 is: 979,537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,496.60 : 1,791,930.78 = 709,807.86 : x
  2. Step 2: Convert to fraction form
    1,298,496.60/1,791,930.78 = 709,807.86/x
  3. Step 3: Cross multiply
    1,298,496.60x = 1,791,930.78 × 709,807.86
  4. Step 4: Simplify right side
    1,298,496.60x = 1,271,926,552,219.93
  5. Step 5: Solve for x
    x = 1,271,926,552,219.93/1,298,496.60
  6. Step 6: Final answer
    x = 979,537.84

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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.