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Finding the Fourth Proportional to 651,916.72, 977,938.52 and 202,516.72

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Solution

The fourth proportional to 651,916.72, 977,938.52 and 202,516.72 is: 303,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,916.72 : 977,938.52 = 202,516.72 : x
  2. Step 2: Convert to fraction form
    651,916.72/977,938.52 = 202,516.72/x
  3. Step 3: Cross multiply
    651,916.72x = 977,938.52 × 202,516.72
  4. Step 4: Simplify right side
    651,916.72x = 198,048,901,432.05
  5. Step 5: Solve for x
    x = 198,048,901,432.05/651,916.72
  6. Step 6: Final answer
    x = 303,794.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.