Home / 776,422.36-1,071,213.64-470,400.92

Finding the Fourth Proportional to 776,422.36, 1,071,213.64 and 470,400.92

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Solution

The fourth proportional to 776,422.36, 1,071,213.64 and 470,400.92 is: 649,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,422.36 : 1,071,213.64 = 470,400.92 : x
  2. Step 2: Convert to fraction form
    776,422.36/1,071,213.64 = 470,400.92/x
  3. Step 3: Cross multiply
    776,422.36x = 1,071,213.64 × 470,400.92
  4. Step 4: Simplify right side
    776,422.36x = 503,899,876,416.48
  5. Step 5: Solve for x
    x = 503,899,876,416.48/776,422.36
  6. Step 6: Final answer
    x = 649,002.28

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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.