Home / 1,078,708.60-1,618,646.10-447,686.20

Finding the Fourth Proportional to 1,078,708.60, 1,618,646.10 and 447,686.20

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Solution

The fourth proportional to 1,078,708.60, 1,618,646.10 and 447,686.20 is: 671,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,708.60 : 1,618,646.10 = 447,686.20 : x
  2. Step 2: Convert to fraction form
    1,078,708.60/1,618,646.10 = 447,686.20/x
  3. Step 3: Cross multiply
    1,078,708.60x = 1,618,646.10 × 447,686.20
  4. Step 4: Simplify right side
    1,078,708.60x = 724,645,521,653.82
  5. Step 5: Solve for x
    x = 724,645,521,653.82/1,078,708.60
  6. Step 6: Final answer
    x = 671,771.34

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Double scale
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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.