Home / 673,669.30-1,010,503.95-407,948.80

Finding the Fourth Proportional to 673,669.30, 1,010,503.95 and 407,948.80

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Solution

The fourth proportional to 673,669.30, 1,010,503.95 and 407,948.80 is: 611,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,669.30 : 1,010,503.95 = 407,948.80 : x
  2. Step 2: Convert to fraction form
    673,669.30/1,010,503.95 = 407,948.80/x
  3. Step 3: Cross multiply
    673,669.30x = 1,010,503.95 × 407,948.80
  4. Step 4: Simplify right side
    673,669.30x = 412,233,873,797.76
  5. Step 5: Solve for x
    x = 412,233,873,797.76/673,669.30
  6. Step 6: Final answer
    x = 611,923.20

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Double scale
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Similar ratio
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1.5x scale

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.