Home / 1,187,986.16-1,782,864.92-478,020.24

Finding the Fourth Proportional to 1,187,986.16, 1,782,864.92 and 478,020.24

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Solution

The fourth proportional to 1,187,986.16, 1,782,864.92 and 478,020.24 is: 717,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,986.16 : 1,782,864.92 = 478,020.24 : x
  2. Step 2: Convert to fraction form
    1,187,986.16/1,782,864.92 = 478,020.24/x
  3. Step 3: Cross multiply
    1,187,986.16x = 1,782,864.92 × 478,020.24
  4. Step 4: Simplify right side
    1,187,986.16x = 852,245,516,945.98
  5. Step 5: Solve for x
    x = 852,245,516,945.98/1,187,986.16
  6. Step 6: Final answer
    x = 717,386.74

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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.