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Finding the Fourth Proportional to 418,775.81, 578,013.26 and 237,593.79

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Solution

The fourth proportional to 418,775.81, 578,013.26 and 237,593.79 is: 327,937.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,775.81 : 578,013.26 = 237,593.79 : x
  2. Step 2: Convert to fraction form
    418,775.81/578,013.26 = 237,593.79/x
  3. Step 3: Cross multiply
    418,775.81x = 578,013.26 × 237,593.79
  4. Step 4: Simplify right side
    418,775.81x = 137,332,359,925.69
  5. Step 5: Solve for x
    x = 137,332,359,925.69/418,775.81
  6. Step 6: Final answer
    x = 327,937.67

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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.