Home / 887,865.86-1,225,259.62-485,457.86

Finding the Fourth Proportional to 887,865.86, 1,225,259.62 and 485,457.86

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Solution

The fourth proportional to 887,865.86, 1,225,259.62 and 485,457.86 is: 669,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,865.86 : 1,225,259.62 = 485,457.86 : x
  2. Step 2: Convert to fraction form
    887,865.86/1,225,259.62 = 485,457.86/x
  3. Step 3: Cross multiply
    887,865.86x = 1,225,259.62 × 485,457.86
  4. Step 4: Simplify right side
    887,865.86x = 594,811,913,069.61
  5. Step 5: Solve for x
    x = 594,811,913,069.61/887,865.86
  6. Step 6: Final answer
    x = 669,934.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.