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Finding the Fourth Proportional to 540,856.40, 809,729.40 and 525,304.40

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Solution

The fourth proportional to 540,856.40, 809,729.40 and 525,304.40 is: 786,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,856.40 : 809,729.40 = 525,304.40 : x
  2. Step 2: Convert to fraction form
    540,856.40/809,729.40 = 525,304.40/x
  3. Step 3: Cross multiply
    540,856.40x = 809,729.40 × 525,304.40
  4. Step 4: Simplify right side
    540,856.40x = 425,354,416,629.36
  5. Step 5: Solve for x
    x = 425,354,416,629.36/540,856.40
  6. Step 6: Final answer
    x = 786,446.12

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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.