Home / 784,626.86-1,082,506.56-512,851.70

Finding the Fourth Proportional to 784,626.86, 1,082,506.56 and 512,851.70

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Solution

The fourth proportional to 784,626.86, 1,082,506.56 and 512,851.70 is: 707,553.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,626.86 : 1,082,506.56 = 512,851.70 : x
  2. Step 2: Convert to fraction form
    784,626.86/1,082,506.56 = 512,851.70/x
  3. Step 3: Cross multiply
    784,626.86x = 1,082,506.56 × 512,851.70
  4. Step 4: Simplify right side
    784,626.86x = 555,165,329,557.15
  5. Step 5: Solve for x
    x = 555,165,329,557.15/784,626.86
  6. Step 6: Final answer
    x = 707,553.31

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Double scale
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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.