Home / 469,749.11-648,421.88-278,762.49

Finding the Fourth Proportional to 469,749.11, 648,421.88 and 278,762.49

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Solution

The fourth proportional to 469,749.11, 648,421.88 and 278,762.49 is: 384,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,749.11 : 648,421.88 = 278,762.49 : x
  2. Step 2: Convert to fraction form
    469,749.11/648,421.88 = 278,762.49/x
  3. Step 3: Cross multiply
    469,749.11x = 648,421.88 × 278,762.49
  4. Step 4: Simplify right side
    469,749.11x = 180,755,696,445.47
  5. Step 5: Solve for x
    x = 180,755,696,445.47/469,749.11
  6. Step 6: Final answer
    x = 384,792.00

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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.