Home / 830,459.11-1,146,033.53-448,485.85

Finding the Fourth Proportional to 830,459.11, 1,146,033.53 and 448,485.85

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Solution

The fourth proportional to 830,459.11, 1,146,033.53 and 448,485.85 is: 618,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,459.11 : 1,146,033.53 = 448,485.85 : x
  2. Step 2: Convert to fraction form
    830,459.11/1,146,033.53 = 448,485.85/x
  3. Step 3: Cross multiply
    830,459.11x = 1,146,033.53 × 448,485.85
  4. Step 4: Simplify right side
    830,459.11x = 513,979,819,588.12
  5. Step 5: Solve for x
    x = 513,979,819,588.12/830,459.11
  6. Step 6: Final answer
    x = 618,910.45

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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.