Home / 761,663.90-1,051,055.70-439,354.76

Finding the Fourth Proportional to 761,663.90, 1,051,055.70 and 439,354.76

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Solution

The fourth proportional to 761,663.90, 1,051,055.70 and 439,354.76 is: 606,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,663.90 : 1,051,055.70 = 439,354.76 : x
  2. Step 2: Convert to fraction form
    761,663.90/1,051,055.70 = 439,354.76/x
  3. Step 3: Cross multiply
    761,663.90x = 1,051,055.70 × 439,354.76
  4. Step 4: Simplify right side
    761,663.90x = 461,786,324,820.13
  5. Step 5: Solve for x
    x = 461,786,324,820.13/761,663.90
  6. Step 6: Final answer
    x = 606,286.22

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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.