Home / 729,299.60-1,006,534.88-407,030.46

Finding the Fourth Proportional to 729,299.60, 1,006,534.88 and 407,030.46

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Solution

The fourth proportional to 729,299.60, 1,006,534.88 and 407,030.46 is: 561,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,299.60 : 1,006,534.88 = 407,030.46 : x
  2. Step 2: Convert to fraction form
    729,299.60/1,006,534.88 = 407,030.46/x
  3. Step 3: Cross multiply
    729,299.60x = 1,006,534.88 × 407,030.46
  4. Step 4: Simplify right side
    729,299.60x = 409,690,355,212.45
  5. Step 5: Solve for x
    x = 409,690,355,212.45/729,299.60
  6. Step 6: Final answer
    x = 561,758.65

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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.