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Finding the Fourth Proportional to 472,779.38, 652,435.54 and 303,013.50

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Solution

The fourth proportional to 472,779.38, 652,435.54 and 303,013.50 is: 418,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,779.38 : 652,435.54 = 303,013.50 : x
  2. Step 2: Convert to fraction form
    472,779.38/652,435.54 = 303,013.50/x
  3. Step 3: Cross multiply
    472,779.38x = 652,435.54 × 303,013.50
  4. Step 4: Simplify right side
    472,779.38x = 197,696,775,742.26
  5. Step 5: Solve for x
    x = 197,696,775,742.26/472,779.38
  6. Step 6: Final answer
    x = 418,158.63

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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.