Home / 721,059.30-1,081,260.90-384,013.44

Finding the Fourth Proportional to 721,059.30, 1,081,260.90 and 384,013.44

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Solution

The fourth proportional to 721,059.30, 1,081,260.90 and 384,013.44 is: 575,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,059.30 : 1,081,260.90 = 384,013.44 : x
  2. Step 2: Convert to fraction form
    721,059.30/1,081,260.90 = 384,013.44/x
  3. Step 3: Cross multiply
    721,059.30x = 1,081,260.90 × 384,013.44
  4. Step 4: Simplify right side
    721,059.30x = 415,218,717,746.50
  5. Step 5: Solve for x
    x = 415,218,717,746.50/721,059.30
  6. Step 6: Final answer
    x = 575,845.45

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1.5x scale

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.