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Finding the Fourth Proportional to 572,435.40, 858,750.30 and 306,123.60

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Solution

The fourth proportional to 572,435.40, 858,750.30 and 306,123.60 is: 459,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,435.40 : 858,750.30 = 306,123.60 : x
  2. Step 2: Convert to fraction form
    572,435.40/858,750.30 = 306,123.60/x
  3. Step 3: Cross multiply
    572,435.40x = 858,750.30 × 306,123.60
  4. Step 4: Simplify right side
    572,435.40x = 262,883,733,337.08
  5. Step 5: Solve for x
    x = 262,883,733,337.08/572,435.40
  6. Step 6: Final answer
    x = 459,237.38

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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.