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Finding the Fourth Proportional to 735,677.68, 1,015,329 and 449,136.40

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Solution

The fourth proportional to 735,677.68, 1,015,329 and 449,136.40 is: 619,865.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,677.68 : 1,015,329 = 449,136.40 : x
  2. Step 2: Convert to fraction form
    735,677.68/1,015,329 = 449,136.40/x
  3. Step 3: Cross multiply
    735,677.68x = 1,015,329 × 449,136.40
  4. Step 4: Simplify right side
    735,677.68x = 456,021,211,875.60
  5. Step 5: Solve for x
    x = 456,021,211,875.60/735,677.68
  6. Step 6: Final answer
    x = 619,865.50

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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.