Home / 918,571.86-1,267,557.38-510,648.89

Finding the Fourth Proportional to 918,571.86, 1,267,557.38 and 510,648.89

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Solution

The fourth proportional to 918,571.86, 1,267,557.38 and 510,648.89 is: 704,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,571.86 : 1,267,557.38 = 510,648.89 : x
  2. Step 2: Convert to fraction form
    918,571.86/1,267,557.38 = 510,648.89/x
  3. Step 3: Cross multiply
    918,571.86x = 1,267,557.38 × 510,648.89
  4. Step 4: Simplify right side
    918,571.86x = 647,276,760,217.28
  5. Step 5: Solve for x
    x = 647,276,760,217.28/918,571.86
  6. Step 6: Final answer
    x = 704,655.55

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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.