Home / 711,415.02-1,067,124.32-290,690.88

Finding the Fourth Proportional to 711,415.02, 1,067,124.32 and 290,690.88

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Solution

The fourth proportional to 711,415.02, 1,067,124.32 and 290,690.88 is: 436,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,415.02 : 1,067,124.32 = 290,690.88 : x
  2. Step 2: Convert to fraction form
    711,415.02/1,067,124.32 = 290,690.88/x
  3. Step 3: Cross multiply
    711,415.02x = 1,067,124.32 × 290,690.88
  4. Step 4: Simplify right side
    711,415.02x = 310,203,307,650.20
  5. Step 5: Solve for x
    x = 310,203,307,650.20/711,415.02
  6. Step 6: Final answer
    x = 436,037.05

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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.