Home / 1,029,642.62-1,420,064.33-724,728.38

Finding the Fourth Proportional to 1,029,642.62, 1,420,064.33 and 724,728.38

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Solution

The fourth proportional to 1,029,642.62, 1,420,064.33 and 724,728.38 is: 999,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,642.62 : 1,420,064.33 = 724,728.38 : x
  2. Step 2: Convert to fraction form
    1,029,642.62/1,420,064.33 = 724,728.38/x
  3. Step 3: Cross multiply
    1,029,642.62x = 1,420,064.33 × 724,728.38
  4. Step 4: Simplify right side
    1,029,642.62x = 1,029,160,910,652.72
  5. Step 5: Solve for x
    x = 1,029,160,910,652.72/1,029,642.62
  6. Step 6: Final answer
    x = 999,532.16

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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.