Home / 990,087-1,484,892.60-457,095.96

Finding the Fourth Proportional to 990,087, 1,484,892.60 and 457,095.96

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Solution

The fourth proportional to 990,087, 1,484,892.60 and 457,095.96 is: 685,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,087 : 1,484,892.60 = 457,095.96 : x
  2. Step 2: Convert to fraction form
    990,087/1,484,892.60 = 457,095.96/x
  3. Step 3: Cross multiply
    990,087x = 1,484,892.60 × 457,095.96
  4. Step 4: Simplify right side
    990,087x = 678,738,408,493.90
  5. Step 5: Solve for x
    x = 678,738,408,493.90/990,087
  6. Step 6: Final answer
    x = 685,534.11

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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.