Home / 421,337.30-581,749.90-260,412.98

Finding the Fourth Proportional to 421,337.30, 581,749.90 and 260,412.98

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Solution

The fourth proportional to 421,337.30, 581,749.90 and 260,412.98 is: 359,558.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,337.30 : 581,749.90 = 260,412.98 : x
  2. Step 2: Convert to fraction form
    421,337.30/581,749.90 = 260,412.98/x
  3. Step 3: Cross multiply
    421,337.30x = 581,749.90 × 260,412.98
  4. Step 4: Simplify right side
    421,337.30x = 151,495,221,513.92
  5. Step 5: Solve for x
    x = 151,495,221,513.92/421,337.30
  6. Step 6: Final answer
    x = 359,558.06

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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.