Home / 829,374.60-1,243,140.30-355,979.40

Finding the Fourth Proportional to 829,374.60, 1,243,140.30 and 355,979.40

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Solution

The fourth proportional to 829,374.60, 1,243,140.30 and 355,979.40 is: 533,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,374.60 : 1,243,140.30 = 355,979.40 : x
  2. Step 2: Convert to fraction form
    829,374.60/1,243,140.30 = 355,979.40/x
  3. Step 3: Cross multiply
    829,374.60x = 1,243,140.30 × 355,979.40
  4. Step 4: Simplify right side
    829,374.60x = 442,532,338,109.82
  5. Step 5: Solve for x
    x = 442,532,338,109.82/829,374.60
  6. Step 6: Final answer
    x = 533,573.54

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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.