Home / 1,015,420.80-1,523,714.40-384,787.20

Finding the Fourth Proportional to 1,015,420.80, 1,523,714.40 and 384,787.20

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Solution

The fourth proportional to 1,015,420.80, 1,523,714.40 and 384,787.20 is: 577,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,420.80 : 1,523,714.40 = 384,787.20 : x
  2. Step 2: Convert to fraction form
    1,015,420.80/1,523,714.40 = 384,787.20/x
  3. Step 3: Cross multiply
    1,015,420.80x = 1,523,714.40 × 384,787.20
  4. Step 4: Simplify right side
    1,015,420.80x = 586,305,797,575.68
  5. Step 5: Solve for x
    x = 586,305,797,575.68/1,015,420.80
  6. Step 6: Final answer
    x = 577,401.80

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1.5x scale

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.