Home / 717,771.80-1,076,139.30-402,325.40

Finding the Fourth Proportional to 717,771.80, 1,076,139.30 and 402,325.40

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Solution

The fourth proportional to 717,771.80, 1,076,139.30 and 402,325.40 is: 603,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,771.80 : 1,076,139.30 = 402,325.40 : x
  2. Step 2: Convert to fraction form
    717,771.80/1,076,139.30 = 402,325.40/x
  3. Step 3: Cross multiply
    717,771.80x = 1,076,139.30 × 402,325.40
  4. Step 4: Simplify right side
    717,771.80x = 432,958,174,328.22
  5. Step 5: Solve for x
    x = 432,958,174,328.22/717,771.80
  6. Step 6: Final answer
    x = 603,197.53

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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.