Home / 717,829.70-1,075,448.55-418,064.90

Finding the Fourth Proportional to 717,829.70, 1,075,448.55 and 418,064.90

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Solution

The fourth proportional to 717,829.70, 1,075,448.55 and 418,064.90 is: 626,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,829.70 : 1,075,448.55 = 418,064.90 : x
  2. Step 2: Convert to fraction form
    717,829.70/1,075,448.55 = 418,064.90/x
  3. Step 3: Cross multiply
    717,829.70x = 1,075,448.55 × 418,064.90
  4. Step 4: Simplify right side
    717,829.70x = 449,607,290,510.90
  5. Step 5: Solve for x
    x = 449,607,290,510.90/717,829.70
  6. Step 6: Final answer
    x = 626,342.56

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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.