Home / 1,025,002.80-1,537,504.20-689,079.60

Finding the Fourth Proportional to 1,025,002.80, 1,537,504.20 and 689,079.60

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Solution

The fourth proportional to 1,025,002.80, 1,537,504.20 and 689,079.60 is: 1,033,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,002.80 : 1,537,504.20 = 689,079.60 : x
  2. Step 2: Convert to fraction form
    1,025,002.80/1,537,504.20 = 689,079.60/x
  3. Step 3: Cross multiply
    1,025,002.80x = 1,537,504.20 × 689,079.60
  4. Step 4: Simplify right side
    1,025,002.80x = 1,059,462,779,134.32
  5. Step 5: Solve for x
    x = 1,059,462,779,134.32/1,025,002.80
  6. Step 6: Final answer
    x = 1,033,619.40

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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.