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Finding the Fourth Proportional to 567,420.60, 783,036.36 and 312,771.36

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Solution

The fourth proportional to 567,420.60, 783,036.36 and 312,771.36 is: 431,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,420.60 : 783,036.36 = 312,771.36 : x
  2. Step 2: Convert to fraction form
    567,420.60/783,036.36 = 312,771.36/x
  3. Step 3: Cross multiply
    567,420.60x = 783,036.36 × 312,771.36
  4. Step 4: Simplify right side
    567,420.60x = 244,911,347,246.65
  5. Step 5: Solve for x
    x = 244,911,347,246.65/567,420.60
  6. Step 6: Final answer
    x = 431,622.23

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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.