Home / 538,738.51-742,686.37-423,817.42

Finding the Fourth Proportional to 538,738.51, 742,686.37 and 423,817.42

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Solution

The fourth proportional to 538,738.51, 742,686.37 and 423,817.42 is: 584,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,738.51 : 742,686.37 = 423,817.42 : x
  2. Step 2: Convert to fraction form
    538,738.51/742,686.37 = 423,817.42/x
  3. Step 3: Cross multiply
    538,738.51x = 742,686.37 × 423,817.42
  4. Step 4: Simplify right side
    538,738.51x = 314,763,421,202.57
  5. Step 5: Solve for x
    x = 314,763,421,202.57/538,738.51
  6. Step 6: Final answer
    x = 584,260.11

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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.