Home / 2,911,669.80-4,018,120.36-1,688,700.54

Finding the Fourth Proportional to 2,911,669.80, 4,018,120.36 and 1,688,700.54

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Solution

The fourth proportional to 2,911,669.80, 4,018,120.36 and 1,688,700.54 is: 2,330,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,669.80 : 4,018,120.36 = 1,688,700.54 : x
  2. Step 2: Convert to fraction form
    2,911,669.80/4,018,120.36 = 1,688,700.54/x
  3. Step 3: Cross multiply
    2,911,669.80x = 4,018,120.36 × 1,688,700.54
  4. Step 4: Simplify right side
    2,911,669.80x = 6,785,402,021,716.99
  5. Step 5: Solve for x
    x = 6,785,402,021,716.99/2,911,669.80
  6. Step 6: Final answer
    x = 2,330,416.05

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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.