Home / 761,939.03-1,051,509.11-455,957.21

Finding the Fourth Proportional to 761,939.03, 1,051,509.11 and 455,957.21

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Solution

The fourth proportional to 761,939.03, 1,051,509.11 and 455,957.21 is: 629,240.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,939.03 : 1,051,509.11 = 455,957.21 : x
  2. Step 2: Convert to fraction form
    761,939.03/1,051,509.11 = 455,957.21/x
  3. Step 3: Cross multiply
    761,939.03x = 1,051,509.11 × 455,957.21
  4. Step 4: Simplify right side
    761,939.03x = 479,443,160,434.17
  5. Step 5: Solve for x
    x = 479,443,160,434.17/761,939.03
  6. Step 6: Final answer
    x = 629,240.84

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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.