Home / 827,420.40-1,241,130.60-788,929.20

Finding the Fourth Proportional to 827,420.40, 1,241,130.60 and 788,929.20

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Solution

The fourth proportional to 827,420.40, 1,241,130.60 and 788,929.20 is: 1,183,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,420.40 : 1,241,130.60 = 788,929.20 : x
  2. Step 2: Convert to fraction form
    827,420.40/1,241,130.60 = 788,929.20/x
  3. Step 3: Cross multiply
    827,420.40x = 1,241,130.60 × 788,929.20
  4. Step 4: Simplify right side
    827,420.40x = 979,164,171,353.52
  5. Step 5: Solve for x
    x = 979,164,171,353.52/827,420.40
  6. Step 6: Final answer
    x = 1,183,393.80

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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.