Home / 749,428.80-1,123,754.40-275,870.40

Finding the Fourth Proportional to 749,428.80, 1,123,754.40 and 275,870.40

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Solution

The fourth proportional to 749,428.80, 1,123,754.40 and 275,870.40 is: 413,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,428.80 : 1,123,754.40 = 275,870.40 : x
  2. Step 2: Convert to fraction form
    749,428.80/1,123,754.40 = 275,870.40/x
  3. Step 3: Cross multiply
    749,428.80x = 1,123,754.40 × 275,870.40
  4. Step 4: Simplify right side
    749,428.80x = 310,010,575,829.76
  5. Step 5: Solve for x
    x = 310,010,575,829.76/749,428.80
  6. Step 6: Final answer
    x = 413,662.48

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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.