Home / 725,311.63-1,000,886.04-403,010.69

Finding the Fourth Proportional to 725,311.63, 1,000,886.04 and 403,010.69

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Solution

The fourth proportional to 725,311.63, 1,000,886.04 and 403,010.69 is: 556,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,311.63 : 1,000,886.04 = 403,010.69 : x
  2. Step 2: Convert to fraction form
    725,311.63/1,000,886.04 = 403,010.69/x
  3. Step 3: Cross multiply
    725,311.63x = 1,000,886.04 × 403,010.69
  4. Step 4: Simplify right side
    725,311.63x = 403,367,773,591.77
  5. Step 5: Solve for x
    x = 403,367,773,591.77/725,311.63
  6. Step 6: Final answer
    x = 556,130.30

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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.