Home / 724,210.47-999,403.11-401,923.22

Finding the Fourth Proportional to 724,210.47, 999,403.11 and 401,923.22

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Solution

The fourth proportional to 724,210.47, 999,403.11 and 401,923.22 is: 554,649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,210.47 : 999,403.11 = 401,923.22 : x
  2. Step 2: Convert to fraction form
    724,210.47/999,403.11 = 401,923.22/x
  3. Step 3: Cross multiply
    724,210.47x = 999,403.11 × 401,923.22
  4. Step 4: Simplify right side
    724,210.47x = 401,683,311,052.20
  5. Step 5: Solve for x
    x = 401,683,311,052.20/724,210.47
  6. Step 6: Final answer
    x = 554,649.96

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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.