Home / 888,278.40-1,225,756.80-485,870.40

Finding the Fourth Proportional to 888,278.40, 1,225,756.80 and 485,870.40

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Solution

The fourth proportional to 888,278.40, 1,225,756.80 and 485,870.40 is: 670,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,278.40 : 1,225,756.80 = 485,870.40 : x
  2. Step 2: Convert to fraction form
    888,278.40/1,225,756.80 = 485,870.40/x
  3. Step 3: Cross multiply
    888,278.40x = 1,225,756.80 × 485,870.40
  4. Step 4: Simplify right side
    888,278.40x = 595,558,946,718.72
  5. Step 5: Solve for x
    x = 595,558,946,718.72/888,278.40
  6. Step 6: Final answer
    x = 670,464.29

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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.