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Finding the Fourth Proportional to 779,785.80, 1,076,197.62 and 473,912

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Solution

The fourth proportional to 779,785.80, 1,076,197.62 and 473,912 is: 654,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,785.80 : 1,076,197.62 = 473,912 : x
  2. Step 2: Convert to fraction form
    779,785.80/1,076,197.62 = 473,912/x
  3. Step 3: Cross multiply
    779,785.80x = 1,076,197.62 × 473,912
  4. Step 4: Simplify right side
    779,785.80x = 510,022,966,489.44
  5. Step 5: Solve for x
    x = 510,022,966,489.44/779,785.80
  6. Step 6: Final answer
    x = 654,055.21

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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.