Home / 729,417.64-1,006,647.06-407,190.64

Finding the Fourth Proportional to 729,417.64, 1,006,647.06 and 407,190.64

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Solution

The fourth proportional to 729,417.64, 1,006,647.06 and 407,190.64 is: 561,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,417.64 : 1,006,647.06 = 407,190.64 : x
  2. Step 2: Convert to fraction form
    729,417.64/1,006,647.06 = 407,190.64/x
  3. Step 3: Cross multiply
    729,417.64x = 1,006,647.06 × 407,190.64
  4. Step 4: Simplify right side
    729,417.64x = 409,897,260,615.52
  5. Step 5: Solve for x
    x = 409,897,260,615.52/729,417.64
  6. Step 6: Final answer
    x = 561,951.40

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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.