Home / 985,298.80-1,477,948.20-453,857.80

Finding the Fourth Proportional to 985,298.80, 1,477,948.20 and 453,857.80

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Solution

The fourth proportional to 985,298.80, 1,477,948.20 and 453,857.80 is: 680,786.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,298.80 : 1,477,948.20 = 453,857.80 : x
  2. Step 2: Convert to fraction form
    985,298.80/1,477,948.20 = 453,857.80/x
  3. Step 3: Cross multiply
    985,298.80x = 1,477,948.20 × 453,857.80
  4. Step 4: Simplify right side
    985,298.80x = 670,778,318,565.96
  5. Step 5: Solve for x
    x = 670,778,318,565.96/985,298.80
  6. Step 6: Final answer
    x = 680,786.70

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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.