Home / 1,247,830.18-1,722,005.66-674,870.36

Finding the Fourth Proportional to 1,247,830.18, 1,722,005.66 and 674,870.36

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Solution

The fourth proportional to 1,247,830.18, 1,722,005.66 and 674,870.36 is: 931,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,830.18 : 1,722,005.66 = 674,870.36 : x
  2. Step 2: Convert to fraction form
    1,247,830.18/1,722,005.66 = 674,870.36/x
  3. Step 3: Cross multiply
    1,247,830.18x = 1,722,005.66 × 674,870.36
  4. Step 4: Simplify right side
    1,247,830.18x = 1,162,130,579,686.24
  5. Step 5: Solve for x
    x = 1,162,130,579,686.24/1,247,830.18
  6. Step 6: Final answer
    x = 931,321.10

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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.