Home / 729,424.64-1,006,656.72-407,197.64

Finding the Fourth Proportional to 729,424.64, 1,006,656.72 and 407,197.64

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Solution

The fourth proportional to 729,424.64, 1,006,656.72 and 407,197.64 is: 561,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,424.64 : 1,006,656.72 = 407,197.64 : x
  2. Step 2: Convert to fraction form
    729,424.64/1,006,656.72 = 407,197.64/x
  3. Step 3: Cross multiply
    729,424.64x = 1,006,656.72 × 407,197.64
  4. Step 4: Simplify right side
    729,424.64x = 409,908,240,674.14
  5. Step 5: Solve for x
    x = 409,908,240,674.14/729,424.64
  6. Step 6: Final answer
    x = 561,961.06

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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.