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Finding the Fourth Proportional to 893,313.60, 1,339,970.40 and 302,337.60

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Solution

The fourth proportional to 893,313.60, 1,339,970.40 and 302,337.60 is: 453,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,313.60 : 1,339,970.40 = 302,337.60 : x
  2. Step 2: Convert to fraction form
    893,313.60/1,339,970.40 = 302,337.60/x
  3. Step 3: Cross multiply
    893,313.60x = 1,339,970.40 × 302,337.60
  4. Step 4: Simplify right side
    893,313.60x = 405,123,434,807.04
  5. Step 5: Solve for x
    x = 405,123,434,807.04/893,313.60
  6. Step 6: Final answer
    x = 453,506.40

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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.