Home / 571,977.84-789,423.84-317,411.04

Finding the Fourth Proportional to 571,977.84, 789,423.84 and 317,411.04

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Solution

The fourth proportional to 571,977.84, 789,423.84 and 317,411.04 is: 438,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,977.84 : 789,423.84 = 317,411.04 : x
  2. Step 2: Convert to fraction form
    571,977.84/789,423.84 = 317,411.04/x
  3. Step 3: Cross multiply
    571,977.84x = 789,423.84 × 317,411.04
  4. Step 4: Simplify right side
    571,977.84x = 250,571,842,055.19
  5. Step 5: Solve for x
    x = 250,571,842,055.19/571,977.84
  6. Step 6: Final answer
    x = 438,079.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.