Home / 779,728.50-1,076,025.60-440,218.62

Finding the Fourth Proportional to 779,728.50, 1,076,025.60 and 440,218.62

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Solution

The fourth proportional to 779,728.50, 1,076,025.60 and 440,218.62 is: 607,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,728.50 : 1,076,025.60 = 440,218.62 : x
  2. Step 2: Convert to fraction form
    779,728.50/1,076,025.60 = 440,218.62/x
  3. Step 3: Cross multiply
    779,728.50x = 1,076,025.60 × 440,218.62
  4. Step 4: Simplify right side
    779,728.50x = 473,686,504,716.67
  5. Step 5: Solve for x
    x = 473,686,504,716.67/779,728.50
  6. Step 6: Final answer
    x = 607,501.85

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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.