Home / 990,078.86-1,484,880.36-457,087.94

Finding the Fourth Proportional to 990,078.86, 1,484,880.36 and 457,087.94

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Solution

The fourth proportional to 990,078.86, 1,484,880.36 and 457,087.94 is: 685,522.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,078.86 : 1,484,880.36 = 457,087.94 : x
  2. Step 2: Convert to fraction form
    990,078.86/1,484,880.36 = 457,087.94/x
  3. Step 3: Cross multiply
    990,078.86x = 1,484,880.36 × 457,087.94
  4. Step 4: Simplify right side
    990,078.86x = 678,720,904,898.86
  5. Step 5: Solve for x
    x = 678,720,904,898.86/990,078.86
  6. Step 6: Final answer
    x = 685,522.07

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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.