Home / 918,621.80-1,267,740.28-510,765.54

Finding the Fourth Proportional to 918,621.80, 1,267,740.28 and 510,765.54

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Solution

The fourth proportional to 918,621.80, 1,267,740.28 and 510,765.54 is: 704,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,621.80 : 1,267,740.28 = 510,765.54 : x
  2. Step 2: Convert to fraction form
    918,621.80/1,267,740.28 = 510,765.54/x
  3. Step 3: Cross multiply
    918,621.80x = 1,267,740.28 × 510,765.54
  4. Step 4: Simplify right side
    918,621.80x = 647,518,048,693.95
  5. Step 5: Solve for x
    x = 647,518,048,693.95/918,621.80
  6. Step 6: Final answer
    x = 704,879.91

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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.