Home / 1,207,345.72-1,666,342.38-698,357.56

Finding the Fourth Proportional to 1,207,345.72, 1,666,342.38 and 698,357.56

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Solution

The fourth proportional to 1,207,345.72, 1,666,342.38 and 698,357.56 is: 963,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,345.72 : 1,666,342.38 = 698,357.56 : x
  2. Step 2: Convert to fraction form
    1,207,345.72/1,666,342.38 = 698,357.56/x
  3. Step 3: Cross multiply
    1,207,345.72x = 1,666,342.38 × 698,357.56
  4. Step 4: Simplify right side
    1,207,345.72x = 1,163,702,798,621.39
  5. Step 5: Solve for x
    x = 1,163,702,798,621.39/1,207,345.72
  6. Step 6: Final answer
    x = 963,852.18

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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.