Home / 1,330,508.10-1,995,762.15-1,318,698.30

Finding the Fourth Proportional to 1,330,508.10, 1,995,762.15 and 1,318,698.30

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Solution

The fourth proportional to 1,330,508.10, 1,995,762.15 and 1,318,698.30 is: 1,978,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,508.10 : 1,995,762.15 = 1,318,698.30 : x
  2. Step 2: Convert to fraction form
    1,330,508.10/1,995,762.15 = 1,318,698.30/x
  3. Step 3: Cross multiply
    1,330,508.10x = 1,995,762.15 × 1,318,698.30
  4. Step 4: Simplify right side
    1,330,508.10x = 2,631,808,154,409.34
  5. Step 5: Solve for x
    x = 2,631,808,154,409.34/1,330,508.10
  6. Step 6: Final answer
    x = 1,978,047.45

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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.