Home / 729,939.96-1,007,307.18-407,655.72

Finding the Fourth Proportional to 729,939.96, 1,007,307.18 and 407,655.72

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Solution

The fourth proportional to 729,939.96, 1,007,307.18 and 407,655.72 is: 562,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,939.96 : 1,007,307.18 = 407,655.72 : x
  2. Step 2: Convert to fraction form
    729,939.96/1,007,307.18 = 407,655.72/x
  3. Step 3: Cross multiply
    729,939.96x = 1,007,307.18 × 407,655.72
  4. Step 4: Simplify right side
    729,939.96x = 410,634,533,724.07
  5. Step 5: Solve for x
    x = 410,634,533,724.07/729,939.96
  6. Step 6: Final answer
    x = 562,559.33

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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.