Home / 781,355.58-1,172,078.74-301,586.10

Finding the Fourth Proportional to 781,355.58, 1,172,078.74 and 301,586.10

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Solution

The fourth proportional to 781,355.58, 1,172,078.74 and 301,586.10 is: 452,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,355.58 : 1,172,078.74 = 301,586.10 : x
  2. Step 2: Convert to fraction form
    781,355.58/1,172,078.74 = 301,586.10/x
  3. Step 3: Cross multiply
    781,355.58x = 1,172,078.74 × 301,586.10
  4. Step 4: Simplify right side
    781,355.58x = 353,482,656,089.51
  5. Step 5: Solve for x
    x = 353,482,656,089.51/781,355.58
  6. Step 6: Final answer
    x = 452,396.66

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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.