Home / 717,815.20-1,075,426.80-418,050.40

Finding the Fourth Proportional to 717,815.20, 1,075,426.80 and 418,050.40

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Solution

The fourth proportional to 717,815.20, 1,075,426.80 and 418,050.40 is: 626,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,815.20 : 1,075,426.80 = 418,050.40 : x
  2. Step 2: Convert to fraction form
    717,815.20/1,075,426.80 = 418,050.40/x
  3. Step 3: Cross multiply
    717,815.20x = 1,075,426.80 × 418,050.40
  4. Step 4: Simplify right side
    717,815.20x = 449,582,603,910.72
  5. Step 5: Solve for x
    x = 449,582,603,910.72/717,815.20
  6. Step 6: Final answer
    x = 626,320.82

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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.