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Finding the Fourth Proportional to 570,881.62, 856,215.26 and 286,495.89

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Solution

The fourth proportional to 570,881.62, 856,215.26 and 286,495.89 is: 429,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,881.62 : 856,215.26 = 286,495.89 : x
  2. Step 2: Convert to fraction form
    570,881.62/856,215.26 = 286,495.89/x
  3. Step 3: Cross multiply
    570,881.62x = 856,215.26 × 286,495.89
  4. Step 4: Simplify right side
    570,881.62x = 245,302,149,376.35
  5. Step 5: Solve for x
    x = 245,302,149,376.35/570,881.62
  6. Step 6: Final answer
    x = 429,690.04

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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.