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Finding the Fourth Proportional to 570,403.29, 856,446.03 and 318,176.58

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Solution

The fourth proportional to 570,403.29, 856,446.03 and 318,176.58 is: 477,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,403.29 : 856,446.03 = 318,176.58 : x
  2. Step 2: Convert to fraction form
    570,403.29/856,446.03 = 318,176.58/x
  3. Step 3: Cross multiply
    570,403.29x = 856,446.03 × 318,176.58
  4. Step 4: Simplify right side
    570,403.29x = 272,501,068,779.98
  5. Step 5: Solve for x
    x = 272,501,068,779.98/570,403.29
  6. Step 6: Final answer
    x = 477,734.04

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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.