Home / 830,432.80-1,145,997.24-448,459.54

Finding the Fourth Proportional to 830,432.80, 1,145,997.24 and 448,459.54

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Solution

The fourth proportional to 830,432.80, 1,145,997.24 and 448,459.54 is: 618,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,432.80 : 1,145,997.24 = 448,459.54 : x
  2. Step 2: Convert to fraction form
    830,432.80/1,145,997.24 = 448,459.54/x
  3. Step 3: Cross multiply
    830,432.80x = 1,145,997.24 × 448,459.54
  4. Step 4: Simplify right side
    830,432.80x = 513,933,395,091.67
  5. Step 5: Solve for x
    x = 513,933,395,091.67/830,432.80
  6. Step 6: Final answer
    x = 618,874.15

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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.