Home / 1,230,602.40-1,845,730.80-389,239.20

Finding the Fourth Proportional to 1,230,602.40, 1,845,730.80 and 389,239.20

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Solution

The fourth proportional to 1,230,602.40, 1,845,730.80 and 389,239.20 is: 583,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,602.40 : 1,845,730.80 = 389,239.20 : x
  2. Step 2: Convert to fraction form
    1,230,602.40/1,845,730.80 = 389,239.20/x
  3. Step 3: Cross multiply
    1,230,602.40x = 1,845,730.80 × 389,239.20
  4. Step 4: Simplify right side
    1,230,602.40x = 718,430,780,007.36
  5. Step 5: Solve for x
    x = 718,430,780,007.36/1,230,602.40
  6. Step 6: Final answer
    x = 583,804.14

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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.