Home / 771,423.72-1,157,211.72-265,918.15

Finding the Fourth Proportional to 771,423.72, 1,157,211.72 and 265,918.15

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Solution

The fourth proportional to 771,423.72, 1,157,211.72 and 265,918.15 is: 398,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,423.72 : 1,157,211.72 = 265,918.15 : x
  2. Step 2: Convert to fraction form
    771,423.72/1,157,211.72 = 265,918.15/x
  3. Step 3: Cross multiply
    771,423.72x = 1,157,211.72 × 265,918.15
  4. Step 4: Simplify right side
    771,423.72x = 307,723,601,187.23
  5. Step 5: Solve for x
    x = 307,723,601,187.23/771,423.72
  6. Step 6: Final answer
    x = 398,903.47

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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.