Home / 1,242,159.20-1,864,332.30-736,087.40

Finding the Fourth Proportional to 1,242,159.20, 1,864,332.30 and 736,087.40

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Solution

The fourth proportional to 1,242,159.20, 1,864,332.30 and 736,087.40 is: 1,104,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,159.20 : 1,864,332.30 = 736,087.40 : x
  2. Step 2: Convert to fraction form
    1,242,159.20/1,864,332.30 = 736,087.40/x
  3. Step 3: Cross multiply
    1,242,159.20x = 1,864,332.30 × 736,087.40
  4. Step 4: Simplify right side
    1,242,159.20x = 1,372,311,515,443.02
  5. Step 5: Solve for x
    x = 1,372,311,515,443.02/1,242,159.20
  6. Step 6: Final answer
    x = 1,104,779.09

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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.