Home / 708,376.20-1,062,564.30-389,511.60

Finding the Fourth Proportional to 708,376.20, 1,062,564.30 and 389,511.60

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Solution

The fourth proportional to 708,376.20, 1,062,564.30 and 389,511.60 is: 584,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,376.20 : 1,062,564.30 = 389,511.60 : x
  2. Step 2: Convert to fraction form
    708,376.20/1,062,564.30 = 389,511.60/x
  3. Step 3: Cross multiply
    708,376.20x = 1,062,564.30 × 389,511.60
  4. Step 4: Simplify right side
    708,376.20x = 413,881,120,595.88
  5. Step 5: Solve for x
    x = 413,881,120,595.88/708,376.20
  6. Step 6: Final answer
    x = 584,267.40

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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.