Home / 959,405.30-1,438,801.77-390,785.30

Finding the Fourth Proportional to 959,405.30, 1,438,801.77 and 390,785.30

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Solution

The fourth proportional to 959,405.30, 1,438,801.77 and 390,785.30 is: 586,053.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,405.30 : 1,438,801.77 = 390,785.30 : x
  2. Step 2: Convert to fraction form
    959,405.30/1,438,801.77 = 390,785.30/x
  3. Step 3: Cross multiply
    959,405.30x = 1,438,801.77 × 390,785.30
  4. Step 4: Simplify right side
    959,405.30x = 562,262,584,926.99
  5. Step 5: Solve for x
    x = 562,262,584,926.99/959,405.30
  6. Step 6: Final answer
    x = 586,053.24

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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.