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Finding the Fourth Proportional to 779,706.54, 1,076,004 and 457,422.12

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Solution

The fourth proportional to 779,706.54, 1,076,004 and 457,422.12 is: 631,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,706.54 : 1,076,004 = 457,422.12 : x
  2. Step 2: Convert to fraction form
    779,706.54/1,076,004 = 457,422.12/x
  3. Step 3: Cross multiply
    779,706.54x = 1,076,004 × 457,422.12
  4. Step 4: Simplify right side
    779,706.54x = 492,188,030,808.48
  5. Step 5: Solve for x
    x = 492,188,030,808.48/779,706.54
  6. Step 6: Final answer
    x = 631,247.79

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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.