Home / 815,041.80-1,222,562.70-216,095.40

Finding the Fourth Proportional to 815,041.80, 1,222,562.70 and 216,095.40

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Solution

The fourth proportional to 815,041.80, 1,222,562.70 and 216,095.40 is: 324,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,041.80 : 1,222,562.70 = 216,095.40 : x
  2. Step 2: Convert to fraction form
    815,041.80/1,222,562.70 = 216,095.40/x
  3. Step 3: Cross multiply
    815,041.80x = 1,222,562.70 × 216,095.40
  4. Step 4: Simplify right side
    815,041.80x = 264,190,175,681.58
  5. Step 5: Solve for x
    x = 264,190,175,681.58/815,041.80
  6. Step 6: Final answer
    x = 324,143.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.