Home / 1,453,146.10-2,180,209.52-643,419.98

Finding the Fourth Proportional to 1,453,146.10, 2,180,209.52 and 643,419.98

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Solution

The fourth proportional to 1,453,146.10, 2,180,209.52 and 643,419.98 is: 965,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453,146.10 : 2,180,209.52 = 643,419.98 : x
  2. Step 2: Convert to fraction form
    1,453,146.10/2,180,209.52 = 643,419.98/x
  3. Step 3: Cross multiply
    1,453,146.10x = 2,180,209.52 × 643,419.98
  4. Step 4: Simplify right side
    1,453,146.10x = 1,402,790,355,389.30
  5. Step 5: Solve for x
    x = 1,402,790,355,389.30/1,453,146.10
  6. Step 6: Final answer
    x = 965,347.09

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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.