Home / 685,038.38-945,337.98-374,939.42

Finding the Fourth Proportional to 685,038.38, 945,337.98 and 374,939.42

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Solution

The fourth proportional to 685,038.38, 945,337.98 and 374,939.42 is: 517,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,038.38 : 945,337.98 = 374,939.42 : x
  2. Step 2: Convert to fraction form
    685,038.38/945,337.98 = 374,939.42/x
  3. Step 3: Cross multiply
    685,038.38x = 945,337.98 × 374,939.42
  4. Step 4: Simplify right side
    685,038.38x = 354,444,473,925.17
  5. Step 5: Solve for x
    x = 354,444,473,925.17/685,038.38
  6. Step 6: Final answer
    x = 517,408.20

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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.