Home / 763,883.69-1,054,251.13-458,128.28

Finding the Fourth Proportional to 763,883.69, 1,054,251.13 and 458,128.28

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Solution

The fourth proportional to 763,883.69, 1,054,251.13 and 458,128.28 is: 632,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,883.69 : 1,054,251.13 = 458,128.28 : x
  2. Step 2: Convert to fraction form
    763,883.69/1,054,251.13 = 458,128.28/x
  3. Step 3: Cross multiply
    763,883.69x = 1,054,251.13 × 458,128.28
  4. Step 4: Simplify right side
    763,883.69x = 482,982,252,176.36
  5. Step 5: Solve for x
    x = 482,982,252,176.36/763,883.69
  6. Step 6: Final answer
    x = 632,271.98

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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.