Home / 745,810.80-1,118,716.20-542,857.20

Finding the Fourth Proportional to 745,810.80, 1,118,716.20 and 542,857.20

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Solution

The fourth proportional to 745,810.80, 1,118,716.20 and 542,857.20 is: 814,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,810.80 : 1,118,716.20 = 542,857.20 : x
  2. Step 2: Convert to fraction form
    745,810.80/1,118,716.20 = 542,857.20/x
  3. Step 3: Cross multiply
    745,810.80x = 1,118,716.20 × 542,857.20
  4. Step 4: Simplify right side
    745,810.80x = 607,303,143,926.64
  5. Step 5: Solve for x
    x = 607,303,143,926.64/745,810.80
  6. Step 6: Final answer
    x = 814,285.80

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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.