Home / 1,118,678.55-1,674,081.23-780,130.95

Finding the Fourth Proportional to 1,118,678.55, 1,674,081.23 and 780,130.95

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Solution

The fourth proportional to 1,118,678.55, 1,674,081.23 and 780,130.95 is: 1,167,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,678.55 : 1,674,081.23 = 780,130.95 : x
  2. Step 2: Convert to fraction form
    1,118,678.55/1,674,081.23 = 780,130.95/x
  3. Step 3: Cross multiply
    1,118,678.55x = 1,674,081.23 × 780,130.95
  4. Step 4: Simplify right side
    1,118,678.55x = 1,306,002,576,436.41
  5. Step 5: Solve for x
    x = 1,306,002,576,436.41/1,118,678.55
  6. Step 6: Final answer
    x = 1,167,451.16

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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.