Home / 725,763.12-1,001,587.28-403,478.60

Finding the Fourth Proportional to 725,763.12, 1,001,587.28 and 403,478.60

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Solution

The fourth proportional to 725,763.12, 1,001,587.28 and 403,478.60 is: 556,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,763.12 : 1,001,587.28 = 403,478.60 : x
  2. Step 2: Convert to fraction form
    725,763.12/1,001,587.28 = 403,478.60/x
  3. Step 3: Cross multiply
    725,763.12x = 1,001,587.28 × 403,478.60
  4. Step 4: Simplify right side
    725,763.12x = 404,119,026,486.88
  5. Step 5: Solve for x
    x = 404,119,026,486.88/725,763.12
  6. Step 6: Final answer
    x = 556,819.46

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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.