Home / 1,230,347.40-1,845,348.30-388,984.20

Finding the Fourth Proportional to 1,230,347.40, 1,845,348.30 and 388,984.20

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Solution

The fourth proportional to 1,230,347.40, 1,845,348.30 and 388,984.20 is: 583,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,347.40 : 1,845,348.30 = 388,984.20 : x
  2. Step 2: Convert to fraction form
    1,230,347.40/1,845,348.30 = 388,984.20/x
  3. Step 3: Cross multiply
    1,230,347.40x = 1,845,348.30 × 388,984.20
  4. Step 4: Simplify right side
    1,230,347.40x = 717,811,332,196.86
  5. Step 5: Solve for x
    x = 717,811,332,196.86/1,230,347.40
  6. Step 6: Final answer
    x = 583,421.67

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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.