Home / 1,106,711.40-1,660,067.10-686,807.40

Finding the Fourth Proportional to 1,106,711.40, 1,660,067.10 and 686,807.40

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Solution

The fourth proportional to 1,106,711.40, 1,660,067.10 and 686,807.40 is: 1,030,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,711.40 : 1,660,067.10 = 686,807.40 : x
  2. Step 2: Convert to fraction form
    1,106,711.40/1,660,067.10 = 686,807.40/x
  3. Step 3: Cross multiply
    1,106,711.40x = 1,660,067.10 × 686,807.40
  4. Step 4: Simplify right side
    1,106,711.40x = 1,140,146,368,776.54
  5. Step 5: Solve for x
    x = 1,140,146,368,776.54/1,106,711.40
  6. Step 6: Final answer
    x = 1,030,211.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.