Home / 729,686.44-1,006,991.76-407,400.40

Finding the Fourth Proportional to 729,686.44, 1,006,991.76 and 407,400.40

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Solution

The fourth proportional to 729,686.44, 1,006,991.76 and 407,400.40 is: 562,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,686.44 : 1,006,991.76 = 407,400.40 : x
  2. Step 2: Convert to fraction form
    729,686.44/1,006,991.76 = 407,400.40/x
  3. Step 3: Cross multiply
    729,686.44x = 1,006,991.76 × 407,400.40
  4. Step 4: Simplify right side
    729,686.44x = 410,248,845,820.70
  5. Step 5: Solve for x
    x = 410,248,845,820.70/729,686.44
  6. Step 6: Final answer
    x = 562,226.22

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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.