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Finding the Fourth Proportional to 564,230.38, 778,854.72 and 383,023.30

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Solution

The fourth proportional to 564,230.38, 778,854.72 and 383,023.30 is: 528,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,230.38 : 778,854.72 = 383,023.30 : x
  2. Step 2: Convert to fraction form
    564,230.38/778,854.72 = 383,023.30/x
  3. Step 3: Cross multiply
    564,230.38x = 778,854.72 × 383,023.30
  4. Step 4: Simplify right side
    564,230.38x = 298,319,505,074.98
  5. Step 5: Solve for x
    x = 298,319,505,074.98/564,230.38
  6. Step 6: Final answer
    x = 528,719.32

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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.