Home / 729,443.79-1,006,599.29-407,146.82

Finding the Fourth Proportional to 729,443.79, 1,006,599.29 and 407,146.82

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Solution

The fourth proportional to 729,443.79, 1,006,599.29 and 407,146.82 is: 561,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,443.79 : 1,006,599.29 = 407,146.82 : x
  2. Step 2: Convert to fraction form
    729,443.79/1,006,599.29 = 407,146.82/x
  3. Step 3: Cross multiply
    729,443.79x = 1,006,599.29 × 407,146.82
  4. Step 4: Simplify right side
    729,443.79x = 409,833,692,869.03
  5. Step 5: Solve for x
    x = 409,833,692,869.03/729,443.79
  6. Step 6: Final answer
    x = 561,844.10

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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.