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Finding the Fourth Proportional to 567,410.33, 783,002.69 and 309,281.59

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Solution

The fourth proportional to 567,410.33, 783,002.69 and 309,281.59 is: 426,795.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,410.33 : 783,002.69 = 309,281.59 : x
  2. Step 2: Convert to fraction form
    567,410.33/783,002.69 = 309,281.59/x
  3. Step 3: Cross multiply
    567,410.33x = 783,002.69 × 309,281.59
  4. Step 4: Simplify right side
    567,410.33x = 242,168,315,391.07
  5. Step 5: Solve for x
    x = 242,168,315,391.07/567,410.33
  6. Step 6: Final answer
    x = 426,795.75

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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.