Home / 745,862.78-1,029,020.73-487,886.84

Finding the Fourth Proportional to 745,862.78, 1,029,020.73 and 487,886.84

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Solution

The fourth proportional to 745,862.78, 1,029,020.73 and 487,886.84 is: 673,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,862.78 : 1,029,020.73 = 487,886.84 : x
  2. Step 2: Convert to fraction form
    745,862.78/1,029,020.73 = 487,886.84/x
  3. Step 3: Cross multiply
    745,862.78x = 1,029,020.73 × 487,886.84
  4. Step 4: Simplify right side
    745,862.78x = 502,045,667,109.09
  5. Step 5: Solve for x
    x = 502,045,667,109.09/745,862.78
  6. Step 6: Final answer
    x = 673,107.28

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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.