Home / 780,362.76-1,076,754.39-493,681.08

Finding the Fourth Proportional to 780,362.76, 1,076,754.39 and 493,681.08

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Solution

The fourth proportional to 780,362.76, 1,076,754.39 and 493,681.08 is: 681,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,362.76 : 1,076,754.39 = 493,681.08 : x
  2. Step 2: Convert to fraction form
    780,362.76/1,076,754.39 = 493,681.08/x
  3. Step 3: Cross multiply
    780,362.76x = 1,076,754.39 × 493,681.08
  4. Step 4: Simplify right side
    780,362.76x = 531,573,270,149.94
  5. Step 5: Solve for x
    x = 531,573,270,149.94/780,362.76
  6. Step 6: Final answer
    x = 681,187.39

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Double scale
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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.