Home / 1,152,184.80-1,728,277.20-1,145,186.40

Finding the Fourth Proportional to 1,152,184.80, 1,728,277.20 and 1,145,186.40

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Solution

The fourth proportional to 1,152,184.80, 1,728,277.20 and 1,145,186.40 is: 1,717,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,184.80 : 1,728,277.20 = 1,145,186.40 : x
  2. Step 2: Convert to fraction form
    1,152,184.80/1,728,277.20 = 1,145,186.40/x
  3. Step 3: Cross multiply
    1,152,184.80x = 1,728,277.20 × 1,145,186.40
  4. Step 4: Simplify right side
    1,152,184.80x = 1,979,199,544,870.08
  5. Step 5: Solve for x
    x = 1,979,199,544,870.08/1,152,184.80
  6. Step 6: Final answer
    x = 1,717,779.60

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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.