Home / 806,653.19-1,210,727.91-407,574.21

Finding the Fourth Proportional to 806,653.19, 1,210,727.91 and 407,574.21

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Solution

The fourth proportional to 806,653.19, 1,210,727.91 and 407,574.21 is: 611,739.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,653.19 : 1,210,727.91 = 407,574.21 : x
  2. Step 2: Convert to fraction form
    806,653.19/1,210,727.91 = 407,574.21/x
  3. Step 3: Cross multiply
    806,653.19x = 1,210,727.91 × 407,574.21
  4. Step 4: Simplify right side
    806,653.19x = 493,461,471,443.20
  5. Step 5: Solve for x
    x = 493,461,471,443.20/806,653.19
  6. Step 6: Final answer
    x = 611,739.32

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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.