Home / 991,311.60-1,488,133.80-984,313.20

Finding the Fourth Proportional to 991,311.60, 1,488,133.80 and 984,313.20

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Solution

The fourth proportional to 991,311.60, 1,488,133.80 and 984,313.20 is: 1,477,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,311.60 : 1,488,133.80 = 984,313.20 : x
  2. Step 2: Convert to fraction form
    991,311.60/1,488,133.80 = 984,313.20/x
  3. Step 3: Cross multiply
    991,311.60x = 1,488,133.80 × 984,313.20
  4. Step 4: Simplify right side
    991,311.60x = 1,464,789,742,706.16
  5. Step 5: Solve for x
    x = 1,464,789,742,706.16/991,311.60
  6. Step 6: Final answer
    x = 1,477,627.97

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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.