Home / 428,421.81-591,222.10-237,463.91

Finding the Fourth Proportional to 428,421.81, 591,222.10 and 237,463.91

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Solution

The fourth proportional to 428,421.81, 591,222.10 and 237,463.91 is: 327,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,421.81 : 591,222.10 = 237,463.91 : x
  2. Step 2: Convert to fraction form
    428,421.81/591,222.10 = 237,463.91/x
  3. Step 3: Cross multiply
    428,421.81x = 591,222.10 × 237,463.91
  4. Step 4: Simplify right side
    428,421.81x = 140,393,911,544.41
  5. Step 5: Solve for x
    x = 140,393,911,544.41/428,421.81
  6. Step 6: Final answer
    x = 327,700.20

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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.