Home / 828,905.12-1,243,357.60-548,356.72

Finding the Fourth Proportional to 828,905.12, 1,243,357.60 and 548,356.72

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Solution

The fourth proportional to 828,905.12, 1,243,357.60 and 548,356.72 is: 822,535.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,905.12 : 1,243,357.60 = 548,356.72 : x
  2. Step 2: Convert to fraction form
    828,905.12/1,243,357.60 = 548,356.72/x
  3. Step 3: Cross multiply
    828,905.12x = 1,243,357.60 × 548,356.72
  4. Step 4: Simplify right side
    828,905.12x = 681,803,495,323.07
  5. Step 5: Solve for x
    x = 681,803,495,323.07/828,905.12
  6. Step 6: Final answer
    x = 822,535.03

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1.5x scale

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.