Home / 781,870.80-1,172,666.25-234,651.72

Finding the Fourth Proportional to 781,870.80, 1,172,666.25 and 234,651.72

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Solution

The fourth proportional to 781,870.80, 1,172,666.25 and 234,651.72 is: 351,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,870.80 : 1,172,666.25 = 234,651.72 : x
  2. Step 2: Convert to fraction form
    781,870.80/1,172,666.25 = 234,651.72/x
  3. Step 3: Cross multiply
    781,870.80x = 1,172,666.25 × 234,651.72
  4. Step 4: Simplify right side
    781,870.80x = 275,168,152,548.45
  5. Step 5: Solve for x
    x = 275,168,152,548.45/781,870.80
  6. Step 6: Final answer
    x = 351,935.58

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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.