Home / 1,230,615.40-1,845,750.30-389,252.20

Finding the Fourth Proportional to 1,230,615.40, 1,845,750.30 and 389,252.20

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Solution

The fourth proportional to 1,230,615.40, 1,845,750.30 and 389,252.20 is: 583,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,615.40 : 1,845,750.30 = 389,252.20 : x
  2. Step 2: Convert to fraction form
    1,230,615.40/1,845,750.30 = 389,252.20/x
  3. Step 3: Cross multiply
    1,230,615.40x = 1,845,750.30 × 389,252.20
  4. Step 4: Simplify right side
    1,230,615.40x = 718,462,364,925.66
  5. Step 5: Solve for x
    x = 718,462,364,925.66/1,230,615.40
  6. Step 6: Final answer
    x = 583,823.64

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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.