Home / 787,731.42-1,087,063.83-430,035.42

Finding the Fourth Proportional to 787,731.42, 1,087,063.83 and 430,035.42

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Solution

The fourth proportional to 787,731.42, 1,087,063.83 and 430,035.42 is: 593,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,731.42 : 1,087,063.83 = 430,035.42 : x
  2. Step 2: Convert to fraction form
    787,731.42/1,087,063.83 = 430,035.42/x
  3. Step 3: Cross multiply
    787,731.42x = 1,087,063.83 × 430,035.42
  4. Step 4: Simplify right side
    787,731.42x = 467,475,950,700.86
  5. Step 5: Solve for x
    x = 467,475,950,700.86/787,731.42
  6. Step 6: Final answer
    x = 593,445.86

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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.