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Finding the Fourth Proportional to 572,929.50, 790,715.61 and 346,576.62

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Solution

The fourth proportional to 572,929.50, 790,715.61 and 346,576.62 is: 478,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,929.50 : 790,715.61 = 346,576.62 : x
  2. Step 2: Convert to fraction form
    572,929.50/790,715.61 = 346,576.62/x
  3. Step 3: Cross multiply
    572,929.50x = 790,715.61 × 346,576.62
  4. Step 4: Simplify right side
    572,929.50x = 274,043,543,495.04
  5. Step 5: Solve for x
    x = 274,043,543,495.04/572,929.50
  6. Step 6: Final answer
    x = 478,319.83

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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.