Home / 1,078,749.80-1,618,319.10-447,727.40

Finding the Fourth Proportional to 1,078,749.80, 1,618,319.10 and 447,727.40

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Solution

The fourth proportional to 1,078,749.80, 1,618,319.10 and 447,727.40 is: 671,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,749.80 : 1,618,319.10 = 447,727.40 : x
  2. Step 2: Convert to fraction form
    1,078,749.80/1,618,319.10 = 447,727.40/x
  3. Step 3: Cross multiply
    1,078,749.80x = 1,618,319.10 × 447,727.40
  4. Step 4: Simplify right side
    1,078,749.80x = 724,565,803,013.34
  5. Step 5: Solve for x
    x = 724,565,803,013.34/1,078,749.80
  6. Step 6: Final answer
    x = 671,671.78

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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.