Home / 745,676.78-1,028,706.63-503,871.26

Finding the Fourth Proportional to 745,676.78, 1,028,706.63 and 503,871.26

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Solution

The fourth proportional to 745,676.78, 1,028,706.63 and 503,871.26 is: 695,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,676.78 : 1,028,706.63 = 503,871.26 : x
  2. Step 2: Convert to fraction form
    745,676.78/1,028,706.63 = 503,871.26/x
  3. Step 3: Cross multiply
    745,676.78x = 1,028,706.63 × 503,871.26
  4. Step 4: Simplify right side
    745,676.78x = 518,335,705,828.45
  5. Step 5: Solve for x
    x = 518,335,705,828.45/745,676.78
  6. Step 6: Final answer
    x = 695,121.16

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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.