Home / 1,119,452.16-1,678,870.20-309,642.60

Finding the Fourth Proportional to 1,119,452.16, 1,678,870.20 and 309,642.60

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Solution

The fourth proportional to 1,119,452.16, 1,678,870.20 and 309,642.60 is: 464,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,452.16 : 1,678,870.20 = 309,642.60 : x
  2. Step 2: Convert to fraction form
    1,119,452.16/1,678,870.20 = 309,642.60/x
  3. Step 3: Cross multiply
    1,119,452.16x = 1,678,870.20 × 309,642.60
  4. Step 4: Simplify right side
    1,119,452.16x = 519,849,733,790.52
  5. Step 5: Solve for x
    x = 519,849,733,790.52/1,119,452.16
  6. Step 6: Final answer
    x = 464,378.70

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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.