Home / 761,301.36-1,050,554.52-421,749.36

Finding the Fourth Proportional to 761,301.36, 1,050,554.52 and 421,749.36

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Solution

The fourth proportional to 761,301.36, 1,050,554.52 and 421,749.36 is: 581,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,301.36 : 1,050,554.52 = 421,749.36 : x
  2. Step 2: Convert to fraction form
    761,301.36/1,050,554.52 = 421,749.36/x
  3. Step 3: Cross multiply
    761,301.36x = 1,050,554.52 × 421,749.36
  4. Step 4: Simplify right side
    761,301.36x = 443,070,696,455.11
  5. Step 5: Solve for x
    x = 443,070,696,455.11/761,301.36
  6. Step 6: Final answer
    x = 581,991.21

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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.