Home / 1,660,704.72-2,292,145.56-1,087,411.92

Finding the Fourth Proportional to 1,660,704.72, 2,292,145.56 and 1,087,411.92

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Solution

The fourth proportional to 1,660,704.72, 2,292,145.56 and 1,087,411.92 is: 1,500,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,704.72 : 2,292,145.56 = 1,087,411.92 : x
  2. Step 2: Convert to fraction form
    1,660,704.72/2,292,145.56 = 1,087,411.92/x
  3. Step 3: Cross multiply
    1,660,704.72x = 2,292,145.56 × 1,087,411.92
  4. Step 4: Simplify right side
    1,660,704.72x = 2,492,506,404,319.08
  5. Step 5: Solve for x
    x = 2,492,506,404,319.08/1,660,704.72
  6. Step 6: Final answer
    x = 1,500,872.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.