Home / 1,285,259.40-1,926,045.90-945,649.80

Finding the Fourth Proportional to 1,285,259.40, 1,926,045.90 and 945,649.80

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Solution

The fourth proportional to 1,285,259.40, 1,926,045.90 and 945,649.80 is: 1,417,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,259.40 : 1,926,045.90 = 945,649.80 : x
  2. Step 2: Convert to fraction form
    1,285,259.40/1,926,045.90 = 945,649.80/x
  3. Step 3: Cross multiply
    1,285,259.40x = 1,926,045.90 × 945,649.80
  4. Step 4: Simplify right side
    1,285,259.40x = 1,821,364,920,125.82
  5. Step 5: Solve for x
    x = 1,821,364,920,125.82/1,285,259.40
  6. Step 6: Final answer
    x = 1,417,118.54

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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.