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Finding the Fourth Proportional to 569,747.63, 786,265.51 and 311,648.83

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Solution

The fourth proportional to 569,747.63, 786,265.51 and 311,648.83 is: 430,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,747.63 : 786,265.51 = 311,648.83 : x
  2. Step 2: Convert to fraction form
    569,747.63/786,265.51 = 311,648.83/x
  3. Step 3: Cross multiply
    569,747.63x = 786,265.51 × 311,648.83
  4. Step 4: Simplify right side
    569,747.63x = 245,038,726,260.85
  5. Step 5: Solve for x
    x = 245,038,726,260.85/569,747.63
  6. Step 6: Final answer
    x = 430,082.92

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1.5x scale

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.