Home / 427,113.67-588,689.04-390,914.62

Finding the Fourth Proportional to 427,113.67, 588,689.04 and 390,914.62

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Solution

The fourth proportional to 427,113.67, 588,689.04 and 390,914.62 is: 538,796.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,113.67 : 588,689.04 = 390,914.62 : x
  2. Step 2: Convert to fraction form
    427,113.67/588,689.04 = 390,914.62/x
  3. Step 3: Cross multiply
    427,113.67x = 588,689.04 × 390,914.62
  4. Step 4: Simplify right side
    427,113.67x = 230,127,152,369.77
  5. Step 5: Solve for x
    x = 230,127,152,369.77/427,113.67
  6. Step 6: Final answer
    x = 538,796.04

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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.