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Finding the Fourth Proportional to 899,563.60, 1,349,863.80 and 339,000.40

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Solution

The fourth proportional to 899,563.60, 1,349,863.80 and 339,000.40 is: 508,695.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,563.60 : 1,349,863.80 = 339,000.40 : x
  2. Step 2: Convert to fraction form
    899,563.60/1,349,863.80 = 339,000.40/x
  3. Step 3: Cross multiply
    899,563.60x = 1,349,863.80 × 339,000.40
  4. Step 4: Simplify right side
    899,563.60x = 457,604,368,145.52
  5. Step 5: Solve for x
    x = 457,604,368,145.52/899,563.60
  6. Step 6: Final answer
    x = 508,695.96

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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.