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Finding the Fourth Proportional to 458,128.86, 683,473.44 and 433,328.28

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Solution

The fourth proportional to 458,128.86, 683,473.44 and 433,328.28 is: 646,473.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,128.86 : 683,473.44 = 433,328.28 : x
  2. Step 2: Convert to fraction form
    458,128.86/683,473.44 = 433,328.28/x
  3. Step 3: Cross multiply
    458,128.86x = 683,473.44 × 433,328.28
  4. Step 4: Simplify right side
    458,128.86x = 296,168,370,180.88
  5. Step 5: Solve for x
    x = 296,168,370,180.88/458,128.86
  6. Step 6: Final answer
    x = 646,473.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.