Home / 571,971.84-789,415.56-317,405.04

Finding the Fourth Proportional to 571,971.84, 789,415.56 and 317,405.04

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Solution

The fourth proportional to 571,971.84, 789,415.56 and 317,405.04 is: 438,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,971.84 : 789,415.56 = 317,405.04 : x
  2. Step 2: Convert to fraction form
    571,971.84/789,415.56 = 317,405.04/x
  3. Step 3: Cross multiply
    571,971.84x = 789,415.56 × 317,405.04
  4. Step 4: Simplify right side
    571,971.84x = 250,564,477,398.42
  5. Step 5: Solve for x
    x = 250,564,477,398.42/571,971.84
  6. Step 6: Final answer
    x = 438,071.35

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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.