Home / 1,016,957.20-1,525,435.80-828,000.40

Finding the Fourth Proportional to 1,016,957.20, 1,525,435.80 and 828,000.40

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Solution

The fourth proportional to 1,016,957.20, 1,525,435.80 and 828,000.40 is: 1,242,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,957.20 : 1,525,435.80 = 828,000.40 : x
  2. Step 2: Convert to fraction form
    1,016,957.20/1,525,435.80 = 828,000.40/x
  3. Step 3: Cross multiply
    1,016,957.20x = 1,525,435.80 × 828,000.40
  4. Step 4: Simplify right side
    1,016,957.20x = 1,263,061,452,574.32
  5. Step 5: Solve for x
    x = 1,263,061,452,574.32/1,016,957.20
  6. Step 6: Final answer
    x = 1,242,000.60

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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.