Home / 959,156.40-1,438,205.58-390,391.50

Finding the Fourth Proportional to 959,156.40, 1,438,205.58 and 390,391.50

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Solution

The fourth proportional to 959,156.40, 1,438,205.58 and 390,391.50 is: 585,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,156.40 : 1,438,205.58 = 390,391.50 : x
  2. Step 2: Convert to fraction form
    959,156.40/1,438,205.58 = 390,391.50/x
  3. Step 3: Cross multiply
    959,156.40x = 1,438,205.58 × 390,391.50
  4. Step 4: Simplify right side
    959,156.40x = 561,463,233,684.57
  5. Step 5: Solve for x
    x = 561,463,233,684.57/959,156.40
  6. Step 6: Final answer
    x = 585,371.93

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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.