Home / 1,221,143.10-1,830,421.86-410,756.04

Finding the Fourth Proportional to 1,221,143.10, 1,830,421.86 and 410,756.04

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Solution

The fourth proportional to 1,221,143.10, 1,830,421.86 and 410,756.04 is: 615,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,143.10 : 1,830,421.86 = 410,756.04 : x
  2. Step 2: Convert to fraction form
    1,221,143.10/1,830,421.86 = 410,756.04/x
  3. Step 3: Cross multiply
    1,221,143.10x = 1,830,421.86 × 410,756.04
  4. Step 4: Simplify right side
    1,221,143.10x = 751,856,834,743.03
  5. Step 5: Solve for x
    x = 751,856,834,743.03/1,221,143.10
  6. Step 6: Final answer
    x = 615,699.20

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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.