Home / 830,431.55-1,145,995.52-448,458.29

Finding the Fourth Proportional to 830,431.55, 1,145,995.52 and 448,458.29

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Solution

The fourth proportional to 830,431.55, 1,145,995.52 and 448,458.29 is: 618,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,431.55 : 1,145,995.52 = 448,458.29 : x
  2. Step 2: Convert to fraction form
    830,431.55/1,145,995.52 = 448,458.29/x
  3. Step 3: Cross multiply
    830,431.55x = 1,145,995.52 × 448,458.29
  4. Step 4: Simplify right side
    830,431.55x = 513,931,183,274.59
  5. Step 5: Solve for x
    x = 513,931,183,274.59/830,431.55
  6. Step 6: Final answer
    x = 618,872.42

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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.