Home / 678,903.35-1,018,354.88-173,465.28

Finding the Fourth Proportional to 678,903.35, 1,018,354.88 and 173,465.28

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Solution

The fourth proportional to 678,903.35, 1,018,354.88 and 173,465.28 is: 260,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,903.35 : 1,018,354.88 = 173,465.28 : x
  2. Step 2: Convert to fraction form
    678,903.35/1,018,354.88 = 173,465.28/x
  3. Step 3: Cross multiply
    678,903.35x = 1,018,354.88 × 173,465.28
  4. Step 4: Simplify right side
    678,903.35x = 176,649,210,037.66
  5. Step 5: Solve for x
    x = 176,649,210,037.66/678,903.35
  6. Step 6: Final answer
    x = 260,197.88

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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.