Home / 1,119,106.40-1,678,659.60-782,527.10

Finding the Fourth Proportional to 1,119,106.40, 1,678,659.60 and 782,527.10

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Solution

The fourth proportional to 1,119,106.40, 1,678,659.60 and 782,527.10 is: 1,173,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,106.40 : 1,678,659.60 = 782,527.10 : x
  2. Step 2: Convert to fraction form
    1,119,106.40/1,678,659.60 = 782,527.10/x
  3. Step 3: Cross multiply
    1,119,106.40x = 1,678,659.60 × 782,527.10
  4. Step 4: Simplify right side
    1,119,106.40x = 1,313,596,628,675.16
  5. Step 5: Solve for x
    x = 1,313,596,628,675.16/1,119,106.40
  6. Step 6: Final answer
    x = 1,173,790.65

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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.