Home / 1,112,246.30-1,668,369.45-402,383.90

Finding the Fourth Proportional to 1,112,246.30, 1,668,369.45 and 402,383.90

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Solution

The fourth proportional to 1,112,246.30, 1,668,369.45 and 402,383.90 is: 603,575.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,246.30 : 1,668,369.45 = 402,383.90 : x
  2. Step 2: Convert to fraction form
    1,112,246.30/1,668,369.45 = 402,383.90/x
  3. Step 3: Cross multiply
    1,112,246.30x = 1,668,369.45 × 402,383.90
  4. Step 4: Simplify right side
    1,112,246.30x = 671,325,005,931.86
  5. Step 5: Solve for x
    x = 671,325,005,931.86/1,112,246.30
  6. Step 6: Final answer
    x = 603,575.85

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Double scale
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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.