Home / 745,394.57-1,028,661.42-423,074.51

Finding the Fourth Proportional to 745,394.57, 1,028,661.42 and 423,074.51

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Solution

The fourth proportional to 745,394.57, 1,028,661.42 and 423,074.51 is: 583,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,394.57 : 1,028,661.42 = 423,074.51 : x
  2. Step 2: Convert to fraction form
    745,394.57/1,028,661.42 = 423,074.51/x
  3. Step 3: Cross multiply
    745,394.57x = 1,028,661.42 × 423,074.51
  4. Step 4: Simplify right side
    745,394.57x = 435,200,421,079.10
  5. Step 5: Solve for x
    x = 435,200,421,079.10/745,394.57
  6. Step 6: Final answer
    x = 583,852.42

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1.5x scale

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.