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Finding the Fourth Proportional to 531,877.50, 733,990.95 and 340,890.90

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Solution

The fourth proportional to 531,877.50, 733,990.95 and 340,890.90 is: 470,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,877.50 : 733,990.95 = 340,890.90 : x
  2. Step 2: Convert to fraction form
    531,877.50/733,990.95 = 340,890.90/x
  3. Step 3: Cross multiply
    531,877.50x = 733,990.95 × 340,890.90
  4. Step 4: Simplify right side
    531,877.50x = 250,210,832,784.89
  5. Step 5: Solve for x
    x = 250,210,832,784.89/531,877.50
  6. Step 6: Final answer
    x = 470,429.44

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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.