Home / 1,207,509.08-1,666,520.60-779,035.68

Finding the Fourth Proportional to 1,207,509.08, 1,666,520.60 and 779,035.68

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Solution

The fourth proportional to 1,207,509.08, 1,666,520.60 and 779,035.68 is: 1,075,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,509.08 : 1,666,520.60 = 779,035.68 : x
  2. Step 2: Convert to fraction form
    1,207,509.08/1,666,520.60 = 779,035.68/x
  3. Step 3: Cross multiply
    1,207,509.08x = 1,666,520.60 × 779,035.68
  4. Step 4: Simplify right side
    1,207,509.08x = 1,298,279,004,959.83
  5. Step 5: Solve for x
    x = 1,298,279,004,959.83/1,207,509.08
  6. Step 6: Final answer
    x = 1,075,171.22

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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.