Home / 1,435,231.74-1,980,483.48-823,434.90

Finding the Fourth Proportional to 1,435,231.74, 1,980,483.48 and 823,434.90

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Solution

The fourth proportional to 1,435,231.74, 1,980,483.48 and 823,434.90 is: 1,136,261.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,231.74 : 1,980,483.48 = 823,434.90 : x
  2. Step 2: Convert to fraction form
    1,435,231.74/1,980,483.48 = 823,434.90/x
  3. Step 3: Cross multiply
    1,435,231.74x = 1,980,483.48 × 823,434.90
  4. Step 4: Simplify right side
    1,435,231.74x = 1,630,799,216,305.45
  5. Step 5: Solve for x
    x = 1,630,799,216,305.45/1,435,231.74
  6. Step 6: Final answer
    x = 1,136,261.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.