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Finding the Fourth Proportional to 570,029.40, 786,518.10 and 343,670.04

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Solution

The fourth proportional to 570,029.40, 786,518.10 and 343,670.04 is: 474,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,029.40 : 786,518.10 = 343,670.04 : x
  2. Step 2: Convert to fraction form
    570,029.40/786,518.10 = 343,670.04/x
  3. Step 3: Cross multiply
    570,029.40x = 786,518.10 × 343,670.04
  4. Step 4: Simplify right side
    570,029.40x = 270,302,706,887.72
  5. Step 5: Solve for x
    x = 270,302,706,887.72/570,029.40
  6. Step 6: Final answer
    x = 474,190.82

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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.