Home / 840,703.44-1,261,046.84-385,165.45

Finding the Fourth Proportional to 840,703.44, 1,261,046.84 and 385,165.45

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Solution

The fourth proportional to 840,703.44, 1,261,046.84 and 385,165.45 is: 577,744.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,703.44 : 1,261,046.84 = 385,165.45 : x
  2. Step 2: Convert to fraction form
    840,703.44/1,261,046.84 = 385,165.45/x
  3. Step 3: Cross multiply
    840,703.44x = 1,261,046.84 × 385,165.45
  4. Step 4: Simplify right side
    840,703.44x = 485,711,671,328.40
  5. Step 5: Solve for x
    x = 485,711,671,328.40/840,703.44
  6. Step 6: Final answer
    x = 577,744.36

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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.