Home / 1,078,707.60-1,618,644.60-447,685.20

Finding the Fourth Proportional to 1,078,707.60, 1,618,644.60 and 447,685.20

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Solution

The fourth proportional to 1,078,707.60, 1,618,644.60 and 447,685.20 is: 671,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,707.60 : 1,618,644.60 = 447,685.20 : x
  2. Step 2: Convert to fraction form
    1,078,707.60/1,618,644.60 = 447,685.20/x
  3. Step 3: Cross multiply
    1,078,707.60x = 1,618,644.60 × 447,685.20
  4. Step 4: Simplify right side
    1,078,707.60x = 724,643,231,479.92
  5. Step 5: Solve for x
    x = 724,643,231,479.92/1,078,707.60
  6. Step 6: Final answer
    x = 671,769.84

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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.