Home / 724,236.90-999,400.32-401,947.20

Finding the Fourth Proportional to 724,236.90, 999,400.32 and 401,947.20

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Solution

The fourth proportional to 724,236.90, 999,400.32 and 401,947.20 is: 554,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,236.90 : 999,400.32 = 401,947.20 : x
  2. Step 2: Convert to fraction form
    724,236.90/999,400.32 = 401,947.20/x
  3. Step 3: Cross multiply
    724,236.90x = 999,400.32 × 401,947.20
  4. Step 4: Simplify right side
    724,236.90x = 401,706,160,303.10
  5. Step 5: Solve for x
    x = 401,706,160,303.10/724,236.90
  6. Step 6: Final answer
    x = 554,661.27

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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.