Home / 648,438.08-894,841.04-376,572.72

Finding the Fourth Proportional to 648,438.08, 894,841.04 and 376,572.72

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Solution

The fourth proportional to 648,438.08, 894,841.04 and 376,572.72 is: 519,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,438.08 : 894,841.04 = 376,572.72 : x
  2. Step 2: Convert to fraction form
    648,438.08/894,841.04 = 376,572.72/x
  3. Step 3: Cross multiply
    648,438.08x = 894,841.04 × 376,572.72
  4. Step 4: Simplify right side
    648,438.08x = 336,972,724,400.43
  5. Step 5: Solve for x
    x = 336,972,724,400.43/648,438.08
  6. Step 6: Final answer
    x = 519,668.31

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1.5x scale

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.