Home / 774,041.38-1,158,057.78-678,553.18

Finding the Fourth Proportional to 774,041.38, 1,158,057.78 and 678,553.18

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Solution

The fourth proportional to 774,041.38, 1,158,057.78 and 678,553.18 is: 1,015,196.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,041.38 : 1,158,057.78 = 678,553.18 : x
  2. Step 2: Convert to fraction form
    774,041.38/1,158,057.78 = 678,553.18/x
  3. Step 3: Cross multiply
    774,041.38x = 1,158,057.78 × 678,553.18
  4. Step 4: Simplify right side
    774,041.38x = 785,803,789,242.74
  5. Step 5: Solve for x
    x = 785,803,789,242.74/774,041.38
  6. Step 6: Final answer
    x = 1,015,196.10

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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.