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Finding the Fourth Proportional to 999,688.60, 1,499,532.90 and 903,266.20

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Solution

The fourth proportional to 999,688.60, 1,499,532.90 and 903,266.20 is: 1,354,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,688.60 : 1,499,532.90 = 903,266.20 : x
  2. Step 2: Convert to fraction form
    999,688.60/1,499,532.90 = 903,266.20/x
  3. Step 3: Cross multiply
    999,688.60x = 1,499,532.90 × 903,266.20
  4. Step 4: Simplify right side
    999,688.60x = 1,354,477,384,357.98
  5. Step 5: Solve for x
    x = 1,354,477,384,357.98/999,688.60
  6. Step 6: Final answer
    x = 1,354,899.30

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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.