Home / 771,389.54-1,157,830.64-372,311.24

Finding the Fourth Proportional to 771,389.54, 1,157,830.64 and 372,311.24

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Solution

The fourth proportional to 771,389.54, 1,157,830.64 and 372,311.24 is: 558,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,389.54 : 1,157,830.64 = 372,311.24 : x
  2. Step 2: Convert to fraction form
    771,389.54/1,157,830.64 = 372,311.24/x
  3. Step 3: Cross multiply
    771,389.54x = 1,157,830.64 × 372,311.24
  4. Step 4: Simplify right side
    771,389.54x = 431,073,361,288.39
  5. Step 5: Solve for x
    x = 431,073,361,288.39/771,389.54
  6. Step 6: Final answer
    x = 558,827.08

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1.5x scale

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.