Home / 779,483.05-1,168,349.78-330,127.45

Finding the Fourth Proportional to 779,483.05, 1,168,349.78 and 330,127.45

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Solution

The fourth proportional to 779,483.05, 1,168,349.78 and 330,127.45 is: 494,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,483.05 : 1,168,349.78 = 330,127.45 : x
  2. Step 2: Convert to fraction form
    779,483.05/1,168,349.78 = 330,127.45/x
  3. Step 3: Cross multiply
    779,483.05x = 1,168,349.78 × 330,127.45
  4. Step 4: Simplify right side
    779,483.05x = 385,704,331,928.82
  5. Step 5: Solve for x
    x = 385,704,331,928.82/779,483.05
  6. Step 6: Final answer
    x = 494,820.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.