Home / 3,121,706.12-4,308,649.40-1,897,752.38

Finding the Fourth Proportional to 3,121,706.12, 4,308,649.40 and 1,897,752.38

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Solution

The fourth proportional to 3,121,706.12, 4,308,649.40 and 1,897,752.38 is: 2,619,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,706.12 : 4,308,649.40 = 1,897,752.38 : x
  2. Step 2: Convert to fraction form
    3,121,706.12/4,308,649.40 = 1,897,752.38/x
  3. Step 3: Cross multiply
    3,121,706.12x = 4,308,649.40 × 1,897,752.38
  4. Step 4: Simplify right side
    3,121,706.12x = 8,176,749,636,636.71
  5. Step 5: Solve for x
    x = 8,176,749,636,636.71/3,121,706.12
  6. Step 6: Final answer
    x = 2,619,320.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.