Home / 753,131.66-1,039,339.77-413,607.20

Finding the Fourth Proportional to 753,131.66, 1,039,339.77 and 413,607.20

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Solution

The fourth proportional to 753,131.66, 1,039,339.77 and 413,607.20 is: 570,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,131.66 : 1,039,339.77 = 413,607.20 : x
  2. Step 2: Convert to fraction form
    753,131.66/1,039,339.77 = 413,607.20/x
  3. Step 3: Cross multiply
    753,131.66x = 1,039,339.77 × 413,607.20
  4. Step 4: Simplify right side
    753,131.66x = 429,878,412,118.34
  5. Step 5: Solve for x
    x = 429,878,412,118.34/753,131.66
  6. Step 6: Final answer
    x = 570,787.86

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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.