Home / 1,078,390.20-1,618,622.10-546,511.80

Finding the Fourth Proportional to 1,078,390.20, 1,618,622.10 and 546,511.80

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Solution

The fourth proportional to 1,078,390.20, 1,618,622.10 and 546,511.80 is: 820,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,390.20 : 1,618,622.10 = 546,511.80 : x
  2. Step 2: Convert to fraction form
    1,078,390.20/1,618,622.10 = 546,511.80/x
  3. Step 3: Cross multiply
    1,078,390.20x = 1,618,622.10 × 546,511.80
  4. Step 4: Simplify right side
    1,078,390.20x = 884,596,077,390.78
  5. Step 5: Solve for x
    x = 884,596,077,390.78/1,078,390.20
  6. Step 6: Final answer
    x = 820,293.13

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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.