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Finding the Fourth Proportional to 550,329.46, 758,426.29 and 429,279.01

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Solution

The fourth proportional to 550,329.46, 758,426.29 and 429,279.01 is: 591,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,329.46 : 758,426.29 = 429,279.01 : x
  2. Step 2: Convert to fraction form
    550,329.46/758,426.29 = 429,279.01/x
  3. Step 3: Cross multiply
    550,329.46x = 758,426.29 × 429,279.01
  4. Step 4: Simplify right side
    550,329.46x = 325,576,483,959.91
  5. Step 5: Solve for x
    x = 325,576,483,959.91/550,329.46
  6. Step 6: Final answer
    x = 591,602.87

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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.