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Finding the Fourth Proportional to 570,432.30, 786,949.47 and 343,951.98

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Solution

The fourth proportional to 570,432.30, 786,949.47 and 343,951.98 is: 474,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,432.30 : 786,949.47 = 343,951.98 : x
  2. Step 2: Convert to fraction form
    570,432.30/786,949.47 = 343,951.98/x
  3. Step 3: Cross multiply
    570,432.30x = 786,949.47 × 343,951.98
  4. Step 4: Simplify right side
    570,432.30x = 270,672,828,366.45
  5. Step 5: Solve for x
    x = 270,672,828,366.45/570,432.30
  6. Step 6: Final answer
    x = 474,504.74

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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.