Home / 724,407.71-1,086,168.69-345,444.35

Finding the Fourth Proportional to 724,407.71, 1,086,168.69 and 345,444.35

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Solution

The fourth proportional to 724,407.71, 1,086,168.69 and 345,444.35 is: 517,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,407.71 : 1,086,168.69 = 345,444.35 : x
  2. Step 2: Convert to fraction form
    724,407.71/1,086,168.69 = 345,444.35/x
  3. Step 3: Cross multiply
    724,407.71x = 1,086,168.69 × 345,444.35
  4. Step 4: Simplify right side
    724,407.71x = 375,210,831,676.56
  5. Step 5: Solve for x
    x = 375,210,831,676.56/724,407.71
  6. Step 6: Final answer
    x = 517,955.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.