Home / 1,078,381.20-1,618,608.60-546,502.80

Finding the Fourth Proportional to 1,078,381.20, 1,618,608.60 and 546,502.80

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Solution

The fourth proportional to 1,078,381.20, 1,618,608.60 and 546,502.80 is: 820,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,381.20 : 1,618,608.60 = 546,502.80 : x
  2. Step 2: Convert to fraction form
    1,078,381.20/1,618,608.60 = 546,502.80/x
  3. Step 3: Cross multiply
    1,078,381.20x = 1,618,608.60 × 546,502.80
  4. Step 4: Simplify right side
    1,078,381.20x = 884,574,132,004.08
  5. Step 5: Solve for x
    x = 884,574,132,004.08/1,078,381.20
  6. Step 6: Final answer
    x = 820,279.63

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1.5x scale

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.