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Finding the Fourth Proportional to 624,007.30, 936,010.95 and 520,327.30

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Solution

The fourth proportional to 624,007.30, 936,010.95 and 520,327.30 is: 780,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,007.30 : 936,010.95 = 520,327.30 : x
  2. Step 2: Convert to fraction form
    624,007.30/936,010.95 = 520,327.30/x
  3. Step 3: Cross multiply
    624,007.30x = 936,010.95 × 520,327.30
  4. Step 4: Simplify right side
    624,007.30x = 487,032,050,383.94
  5. Step 5: Solve for x
    x = 487,032,050,383.94/624,007.30
  6. Step 6: Final answer
    x = 780,490.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.