Home / 380,965.34-570,946.59-212,564.94

Finding the Fourth Proportional to 380,965.34, 570,946.59 and 212,564.94

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Solution

The fourth proportional to 380,965.34, 570,946.59 and 212,564.94 is: 318,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,965.34 : 570,946.59 = 212,564.94 : x
  2. Step 2: Convert to fraction form
    380,965.34/570,946.59 = 212,564.94/x
  3. Step 3: Cross multiply
    380,965.34x = 570,946.59 × 212,564.94
  4. Step 4: Simplify right side
    380,965.34x = 121,363,227,646.56
  5. Step 5: Solve for x
    x = 121,363,227,646.56/380,965.34
  6. Step 6: Final answer
    x = 318,567.64

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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.