Home / 1,407,499.61-2,111,249.61-342,541.64

Finding the Fourth Proportional to 1,407,499.61, 2,111,249.61 and 342,541.64

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Solution

The fourth proportional to 1,407,499.61, 2,111,249.61 and 342,541.64 is: 513,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,499.61 : 2,111,249.61 = 342,541.64 : x
  2. Step 2: Convert to fraction form
    1,407,499.61/2,111,249.61 = 342,541.64/x
  3. Step 3: Cross multiply
    1,407,499.61x = 2,111,249.61 × 342,541.64
  4. Step 4: Simplify right side
    1,407,499.61x = 723,190,909,136.88
  5. Step 5: Solve for x
    x = 723,190,909,136.88/1,407,499.61
  6. Step 6: Final answer
    x = 513,812.51

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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.