Home / 456,053.40-684,080.10-123,629.40

Finding the Fourth Proportional to 456,053.40, 684,080.10 and 123,629.40

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Solution

The fourth proportional to 456,053.40, 684,080.10 and 123,629.40 is: 185,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,053.40 : 684,080.10 = 123,629.40 : x
  2. Step 2: Convert to fraction form
    456,053.40/684,080.10 = 123,629.40/x
  3. Step 3: Cross multiply
    456,053.40x = 684,080.10 × 123,629.40
  4. Step 4: Simplify right side
    456,053.40x = 84,572,412,314.94
  5. Step 5: Solve for x
    x = 84,572,412,314.94/456,053.40
  6. Step 6: Final answer
    x = 185,444.10

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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.