Home / 713,477.08-1,068,789.57-429,011.88

Finding the Fourth Proportional to 713,477.08, 1,068,789.57 and 429,011.88

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Solution

The fourth proportional to 713,477.08, 1,068,789.57 and 429,011.88 is: 642,660.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,477.08 : 1,068,789.57 = 429,011.88 : x
  2. Step 2: Convert to fraction form
    713,477.08/1,068,789.57 = 429,011.88/x
  3. Step 3: Cross multiply
    713,477.08x = 1,068,789.57 × 429,011.88
  4. Step 4: Simplify right side
    713,477.08x = 458,523,422,750.09
  5. Step 5: Solve for x
    x = 458,523,422,750.09/713,477.08
  6. Step 6: Final answer
    x = 642,660.34

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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.