Home / 685,228.60-1,029,009.30-507,935.80

Finding the Fourth Proportional to 685,228.60, 1,029,009.30 and 507,935.80

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Solution

The fourth proportional to 685,228.60, 1,029,009.30 and 507,935.80 is: 762,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,228.60 : 1,029,009.30 = 507,935.80 : x
  2. Step 2: Convert to fraction form
    685,228.60/1,029,009.30 = 507,935.80/x
  3. Step 3: Cross multiply
    685,228.60x = 1,029,009.30 × 507,935.80
  4. Step 4: Simplify right side
    685,228.60x = 522,670,662,002.94
  5. Step 5: Solve for x
    x = 522,670,662,002.94/685,228.60
  6. Step 6: Final answer
    x = 762,768.31

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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.