Home / 830,432.66-1,145,997.07-448,459.41

Finding the Fourth Proportional to 830,432.66, 1,145,997.07 and 448,459.41

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Solution

The fourth proportional to 830,432.66, 1,145,997.07 and 448,459.41 is: 618,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,432.66 : 1,145,997.07 = 448,459.41 : x
  2. Step 2: Convert to fraction form
    830,432.66/1,145,997.07 = 448,459.41/x
  3. Step 3: Cross multiply
    830,432.66x = 1,145,997.07 × 448,459.41
  4. Step 4: Simplify right side
    830,432.66x = 513,933,168,752.78
  5. Step 5: Solve for x
    x = 513,933,168,752.78/830,432.66
  6. Step 6: Final answer
    x = 618,873.98

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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.