Home / 685,445.13-945,925.98-375,374.97

Finding the Fourth Proportional to 685,445.13, 945,925.98 and 375,374.97

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Solution

The fourth proportional to 685,445.13, 945,925.98 and 375,374.97 is: 518,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,445.13 : 945,925.98 = 375,374.97 : x
  2. Step 2: Convert to fraction form
    685,445.13/945,925.98 = 375,374.97/x
  3. Step 3: Cross multiply
    685,445.13x = 945,925.98 × 375,374.97
  4. Step 4: Simplify right side
    685,445.13x = 355,076,936,364.72
  5. Step 5: Solve for x
    x = 355,076,936,364.72/685,445.13
  6. Step 6: Final answer
    x = 518,023.87

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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.