Home / 753,609.30-1,039,999.59-409,445.34

Finding the Fourth Proportional to 753,609.30, 1,039,999.59 and 409,445.34

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Solution

The fourth proportional to 753,609.30, 1,039,999.59 and 409,445.34 is: 565,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,609.30 : 1,039,999.59 = 409,445.34 : x
  2. Step 2: Convert to fraction form
    753,609.30/1,039,999.59 = 409,445.34/x
  3. Step 3: Cross multiply
    753,609.30x = 1,039,999.59 × 409,445.34
  4. Step 4: Simplify right side
    753,609.30x = 425,822,985,727.41
  5. Step 5: Solve for x
    x = 425,822,985,727.41/753,609.30
  6. Step 6: Final answer
    x = 565,044.76

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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.