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Finding the Fourth Proportional to 429,880.87, 592,610.37 and 300,417.40

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Solution

The fourth proportional to 429,880.87, 592,610.37 and 300,417.40 is: 414,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,880.87 : 592,610.37 = 300,417.40 : x
  2. Step 2: Convert to fraction form
    429,880.87/592,610.37 = 300,417.40/x
  3. Step 3: Cross multiply
    429,880.87x = 592,610.37 × 300,417.40
  4. Step 4: Simplify right side
    429,880.87x = 178,030,466,568.44
  5. Step 5: Solve for x
    x = 178,030,466,568.44/429,880.87
  6. Step 6: Final answer
    x = 414,139.08

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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.