Home / 918,907.20-1,267,994.88-510,943.23

Finding the Fourth Proportional to 918,907.20, 1,267,994.88 and 510,943.23

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Solution

The fourth proportional to 918,907.20, 1,267,994.88 and 510,943.23 is: 705,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,907.20 : 1,267,994.88 = 510,943.23 : x
  2. Step 2: Convert to fraction form
    918,907.20/1,267,994.88 = 510,943.23/x
  3. Step 3: Cross multiply
    918,907.20x = 1,267,994.88 × 510,943.23
  4. Step 4: Simplify right side
    918,907.20x = 647,873,399,610.66
  5. Step 5: Solve for x
    x = 647,873,399,610.66/918,907.20
  6. Step 6: Final answer
    x = 705,047.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.