Home / 760,311.38-1,139,581.32-423,190.80

Finding the Fourth Proportional to 760,311.38, 1,139,581.32 and 423,190.80

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Solution

The fourth proportional to 760,311.38, 1,139,581.32 and 423,190.80 is: 634,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,311.38 : 1,139,581.32 = 423,190.80 : x
  2. Step 2: Convert to fraction form
    760,311.38/1,139,581.32 = 423,190.80/x
  3. Step 3: Cross multiply
    760,311.38x = 1,139,581.32 × 423,190.80
  4. Step 4: Simplify right side
    760,311.38x = 482,260,330,475.86
  5. Step 5: Solve for x
    x = 482,260,330,475.86/760,311.38
  6. Step 6: Final answer
    x = 634,293.19

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Double scale
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1.5x scale

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.