Home / 729,760.60-1,007,060.34-407,476.36

Finding the Fourth Proportional to 729,760.60, 1,007,060.34 and 407,476.36

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Solution

The fourth proportional to 729,760.60, 1,007,060.34 and 407,476.36 is: 562,312.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,760.60 : 1,007,060.34 = 407,476.36 : x
  2. Step 2: Convert to fraction form
    729,760.60/1,007,060.34 = 407,476.36/x
  3. Step 3: Cross multiply
    729,760.60x = 1,007,060.34 × 407,476.36
  4. Step 4: Simplify right side
    729,760.60x = 410,353,281,643.56
  5. Step 5: Solve for x
    x = 410,353,281,643.56/729,760.60
  6. Step 6: Final answer
    x = 562,312.19

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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.