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Finding the Fourth Proportional to 472,779.50, 652,435.71 and 303,013.63

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Solution

The fourth proportional to 472,779.50, 652,435.71 and 303,013.63 is: 418,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,779.50 : 652,435.71 = 303,013.63 : x
  2. Step 2: Convert to fraction form
    472,779.50/652,435.71 = 303,013.63/x
  3. Step 3: Cross multiply
    472,779.50x = 652,435.71 × 303,013.63
  4. Step 4: Simplify right side
    472,779.50x = 197,696,909,566.55
  5. Step 5: Solve for x
    x = 197,696,909,566.55/472,779.50
  6. Step 6: Final answer
    x = 418,158.80

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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.