Home / 1,005,923.40-1,508,885.10-687,058.80

Finding the Fourth Proportional to 1,005,923.40, 1,508,885.10 and 687,058.80

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Solution

The fourth proportional to 1,005,923.40, 1,508,885.10 and 687,058.80 is: 1,030,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,923.40 : 1,508,885.10 = 687,058.80 : x
  2. Step 2: Convert to fraction form
    1,005,923.40/1,508,885.10 = 687,058.80/x
  3. Step 3: Cross multiply
    1,005,923.40x = 1,508,885.10 × 687,058.80
  4. Step 4: Simplify right side
    1,005,923.40x = 1,036,692,786,143.88
  5. Step 5: Solve for x
    x = 1,036,692,786,143.88/1,005,923.40
  6. Step 6: Final answer
    x = 1,030,588.20

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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.