Home / 1,076,561.54-1,615,158.11-318,423

Finding the Fourth Proportional to 1,076,561.54, 1,615,158.11 and 318,423

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Solution

The fourth proportional to 1,076,561.54, 1,615,158.11 and 318,423 is: 477,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,561.54 : 1,615,158.11 = 318,423 : x
  2. Step 2: Convert to fraction form
    1,076,561.54/1,615,158.11 = 318,423/x
  3. Step 3: Cross multiply
    1,076,561.54x = 1,615,158.11 × 318,423
  4. Step 4: Simplify right side
    1,076,561.54x = 514,303,489,268.42
  5. Step 5: Solve for x
    x = 514,303,489,268.42/1,076,561.54
  6. Step 6: Final answer
    x = 477,727.91

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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.