Home / 717,219.80-1,075,829.70-418,038.20

Finding the Fourth Proportional to 717,219.80, 1,075,829.70 and 418,038.20

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Solution

The fourth proportional to 717,219.80, 1,075,829.70 and 418,038.20 is: 627,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,219.80 : 1,075,829.70 = 418,038.20 : x
  2. Step 2: Convert to fraction form
    717,219.80/1,075,829.70 = 418,038.20/x
  3. Step 3: Cross multiply
    717,219.80x = 1,075,829.70 × 418,038.20
  4. Step 4: Simplify right side
    717,219.80x = 449,737,911,294.54
  5. Step 5: Solve for x
    x = 449,737,911,294.54/717,219.80
  6. Step 6: Final answer
    x = 627,057.30

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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.