Home / 918,591.78-1,267,699.80-510,700.32

Finding the Fourth Proportional to 918,591.78, 1,267,699.80 and 510,700.32

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Solution

The fourth proportional to 918,591.78, 1,267,699.80 and 510,700.32 is: 704,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,591.78 : 1,267,699.80 = 510,700.32 : x
  2. Step 2: Convert to fraction form
    918,591.78/1,267,699.80 = 510,700.32/x
  3. Step 3: Cross multiply
    918,591.78x = 1,267,699.80 × 510,700.32
  4. Step 4: Simplify right side
    918,591.78x = 647,414,693,523.94
  5. Step 5: Solve for x
    x = 647,414,693,523.94/918,591.78
  6. Step 6: Final answer
    x = 704,790.43

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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.