Home / 1,389,095.80-2,083,643.70-442,562.20

Finding the Fourth Proportional to 1,389,095.80, 2,083,643.70 and 442,562.20

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Solution

The fourth proportional to 1,389,095.80, 2,083,643.70 and 442,562.20 is: 663,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,095.80 : 2,083,643.70 = 442,562.20 : x
  2. Step 2: Convert to fraction form
    1,389,095.80/2,083,643.70 = 442,562.20/x
  3. Step 3: Cross multiply
    1,389,095.80x = 2,083,643.70 × 442,562.20
  4. Step 4: Simplify right side
    1,389,095.80x = 922,141,939,888.14
  5. Step 5: Solve for x
    x = 922,141,939,888.14/1,389,095.80
  6. Step 6: Final answer
    x = 663,843.30

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1.5x scale

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.