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Finding the Fourth Proportional to 553,785.04, 764,223.69 and 299,136.34

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Solution

The fourth proportional to 553,785.04, 764,223.69 and 299,136.34 is: 412,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,785.04 : 764,223.69 = 299,136.34 : x
  2. Step 2: Convert to fraction form
    553,785.04/764,223.69 = 299,136.34/x
  3. Step 3: Cross multiply
    553,785.04x = 764,223.69 × 299,136.34
  4. Step 4: Simplify right side
    553,785.04x = 228,607,077,567.90
  5. Step 5: Solve for x
    x = 228,607,077,567.90/553,785.04
  6. Step 6: Final answer
    x = 412,808.33

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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.