Home / 556,929.75-768,762.45-330,575.25

Finding the Fourth Proportional to 556,929.75, 768,762.45 and 330,575.25

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Solution

The fourth proportional to 556,929.75, 768,762.45 and 330,575.25 is: 456,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,929.75 : 768,762.45 = 330,575.25 : x
  2. Step 2: Convert to fraction form
    556,929.75/768,762.45 = 330,575.25/x
  3. Step 3: Cross multiply
    556,929.75x = 768,762.45 × 330,575.25
  4. Step 4: Simplify right side
    556,929.75x = 254,133,839,099.36
  5. Step 5: Solve for x
    x = 254,133,839,099.36/556,929.75
  6. Step 6: Final answer
    x = 456,312.20

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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.