Home / 1,078,407.60-1,618,923.60-545,654.40

Finding the Fourth Proportional to 1,078,407.60, 1,618,923.60 and 545,654.40

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Solution

The fourth proportional to 1,078,407.60, 1,618,923.60 and 545,654.40 is: 819,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,407.60 : 1,618,923.60 = 545,654.40 : x
  2. Step 2: Convert to fraction form
    1,078,407.60/1,618,923.60 = 545,654.40/x
  3. Step 3: Cross multiply
    1,078,407.60x = 1,618,923.60 × 545,654.40
  4. Step 4: Simplify right side
    1,078,407.60x = 883,372,785,603.84
  5. Step 5: Solve for x
    x = 883,372,785,603.84/1,078,407.60
  6. Step 6: Final answer
    x = 819,145.55

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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.