Home / 873,239.40-1,307,234.70-518,070.60

Finding the Fourth Proportional to 873,239.40, 1,307,234.70 and 518,070.60

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Solution

The fourth proportional to 873,239.40, 1,307,234.70 and 518,070.60 is: 775,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,239.40 : 1,307,234.70 = 518,070.60 : x
  2. Step 2: Convert to fraction form
    873,239.40/1,307,234.70 = 518,070.60/x
  3. Step 3: Cross multiply
    873,239.40x = 1,307,234.70 × 518,070.60
  4. Step 4: Simplify right side
    873,239.40x = 677,239,865,369.82
  5. Step 5: Solve for x
    x = 677,239,865,369.82/873,239.40
  6. Step 6: Final answer
    x = 775,548.91

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Double scale
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Similar ratio
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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.