Home / 990,488.48-1,485,953.04-359,388.32

Finding the Fourth Proportional to 990,488.48, 1,485,953.04 and 359,388.32

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Solution

The fourth proportional to 990,488.48, 1,485,953.04 and 359,388.32 is: 539,162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,488.48 : 1,485,953.04 = 359,388.32 : x
  2. Step 2: Convert to fraction form
    990,488.48/1,485,953.04 = 359,388.32/x
  3. Step 3: Cross multiply
    990,488.48x = 1,485,953.04 × 359,388.32
  4. Step 4: Simplify right side
    990,488.48x = 534,034,166,644.49
  5. Step 5: Solve for x
    x = 534,034,166,644.49/990,488.48
  6. Step 6: Final answer
    x = 539,162.42

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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.