Home / 688,038.20-1,032,057.30-520,076.60

Finding the Fourth Proportional to 688,038.20, 1,032,057.30 and 520,076.60

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Solution

The fourth proportional to 688,038.20, 1,032,057.30 and 520,076.60 is: 780,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,038.20 : 1,032,057.30 = 520,076.60 : x
  2. Step 2: Convert to fraction form
    688,038.20/1,032,057.30 = 520,076.60/x
  3. Step 3: Cross multiply
    688,038.20x = 1,032,057.30 × 520,076.60
  4. Step 4: Simplify right side
    688,038.20x = 536,748,851,589.18
  5. Step 5: Solve for x
    x = 536,748,851,589.18/688,038.20
  6. Step 6: Final answer
    x = 780,114.90

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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.