Home / 887,431.86-1,224,656.01-485,023.86

Finding the Fourth Proportional to 887,431.86, 1,224,656.01 and 485,023.86

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Solution

The fourth proportional to 887,431.86, 1,224,656.01 and 485,023.86 is: 669,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,431.86 : 1,224,656.01 = 485,023.86 : x
  2. Step 2: Convert to fraction form
    887,431.86/1,224,656.01 = 485,023.86/x
  3. Step 3: Cross multiply
    887,431.86x = 1,224,656.01 × 485,023.86
  4. Step 4: Simplify right side
    887,431.86x = 593,987,385,142.40
  5. Step 5: Solve for x
    x = 593,987,385,142.40/887,431.86
  6. Step 6: Final answer
    x = 669,332.95

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1.5x scale

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.