Home / 855,648.70-1,180,424.55-515,928.22

Finding the Fourth Proportional to 855,648.70, 1,180,424.55 and 515,928.22

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Solution

The fourth proportional to 855,648.70, 1,180,424.55 and 515,928.22 is: 711,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,648.70 : 1,180,424.55 = 515,928.22 : x
  2. Step 2: Convert to fraction form
    855,648.70/1,180,424.55 = 515,928.22/x
  3. Step 3: Cross multiply
    855,648.70x = 1,180,424.55 × 515,928.22
  4. Step 4: Simplify right side
    855,648.70x = 609,014,336,925.80
  5. Step 5: Solve for x
    x = 609,014,336,925.80/855,648.70
  6. Step 6: Final answer
    x = 711,757.45

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1.5x scale

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.