Home / 1,078,726.70-1,618,812.30-447,641.12

Finding the Fourth Proportional to 1,078,726.70, 1,618,812.30 and 447,641.12

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Solution

The fourth proportional to 1,078,726.70, 1,618,812.30 and 447,641.12 is: 671,761.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,726.70 : 1,618,812.30 = 447,641.12 : x
  2. Step 2: Convert to fraction form
    1,078,726.70/1,618,812.30 = 447,641.12/x
  3. Step 3: Cross multiply
    1,078,726.70x = 1,618,812.30 × 447,641.12
  4. Step 4: Simplify right side
    1,078,726.70x = 724,646,951,041.78
  5. Step 5: Solve for x
    x = 724,646,951,041.78/1,078,726.70
  6. Step 6: Final answer
    x = 671,761.39

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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.