Home / 847,628.90-1,271,042.40-492,751.70

Finding the Fourth Proportional to 847,628.90, 1,271,042.40 and 492,751.70

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Solution

The fourth proportional to 847,628.90, 1,271,042.40 and 492,751.70 is: 738,894.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,628.90 : 1,271,042.40 = 492,751.70 : x
  2. Step 2: Convert to fraction form
    847,628.90/1,271,042.40 = 492,751.70/x
  3. Step 3: Cross multiply
    847,628.90x = 1,271,042.40 × 492,751.70
  4. Step 4: Simplify right side
    847,628.90x = 626,308,303,372.08
  5. Step 5: Solve for x
    x = 626,308,303,372.08/847,628.90
  6. Step 6: Final answer
    x = 738,894.47

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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.