Home / 1,078,784.40-1,618,824.60-447,632.40

Finding the Fourth Proportional to 1,078,784.40, 1,618,824.60 and 447,632.40

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Solution

The fourth proportional to 1,078,784.40, 1,618,824.60 and 447,632.40 is: 671,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,784.40 : 1,618,824.60 = 447,632.40 : x
  2. Step 2: Convert to fraction form
    1,078,784.40/1,618,824.60 = 447,632.40/x
  3. Step 3: Cross multiply
    1,078,784.40x = 1,618,824.60 × 447,632.40
  4. Step 4: Simplify right side
    1,078,784.40x = 724,638,340,877.04
  5. Step 5: Solve for x
    x = 724,638,340,877.04/1,078,784.40
  6. Step 6: Final answer
    x = 671,717.48

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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.