Home / 1,007,917.75-1,390,926.50-555,208.75

Finding the Fourth Proportional to 1,007,917.75, 1,390,926.50 and 555,208.75

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Solution

The fourth proportional to 1,007,917.75, 1,390,926.50 and 555,208.75 is: 766,188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,917.75 : 1,390,926.50 = 555,208.75 : x
  2. Step 2: Convert to fraction form
    1,007,917.75/1,390,926.50 = 555,208.75/x
  3. Step 3: Cross multiply
    1,007,917.75x = 1,390,926.50 × 555,208.75
  4. Step 4: Simplify right side
    1,007,917.75x = 772,254,563,406.88
  5. Step 5: Solve for x
    x = 772,254,563,406.88/1,007,917.75
  6. Step 6: Final answer
    x = 766,188.08

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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.