Home / 830,432.10-1,145,996.29-448,458.85

Finding the Fourth Proportional to 830,432.10, 1,145,996.29 and 448,458.85

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Solution

The fourth proportional to 830,432.10, 1,145,996.29 and 448,458.85 is: 618,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,432.10 : 1,145,996.29 = 448,458.85 : x
  2. Step 2: Convert to fraction form
    830,432.10/1,145,996.29 = 448,458.85/x
  3. Step 3: Cross multiply
    830,432.10x = 1,145,996.29 × 448,458.85
  4. Step 4: Simplify right side
    830,432.10x = 513,932,174,331.53
  5. Step 5: Solve for x
    x = 513,932,174,331.53/830,432.10
  6. Step 6: Final answer
    x = 618,873.20

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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.