Home / 716,478.56-988,704.24-429,941.60

Finding the Fourth Proportional to 716,478.56, 988,704.24 and 429,941.60

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Solution

The fourth proportional to 716,478.56, 988,704.24 and 429,941.60 is: 593,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,478.56 : 988,704.24 = 429,941.60 : x
  2. Step 2: Convert to fraction form
    716,478.56/988,704.24 = 429,941.60/x
  3. Step 3: Cross multiply
    716,478.56x = 988,704.24 × 429,941.60
  4. Step 4: Simplify right side
    716,478.56x = 425,085,082,872.38
  5. Step 5: Solve for x
    x = 425,085,082,872.38/716,478.56
  6. Step 6: Final answer
    x = 593,297.70

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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.