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Finding the Fourth Proportional to 354,401.60, 531,602.40 and 284,417.60

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Solution

The fourth proportional to 354,401.60, 531,602.40 and 284,417.60 is: 426,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,401.60 : 531,602.40 = 284,417.60 : x
  2. Step 2: Convert to fraction form
    354,401.60/531,602.40 = 284,417.60/x
  3. Step 3: Cross multiply
    354,401.60x = 531,602.40 × 284,417.60
  4. Step 4: Simplify right side
    354,401.60x = 151,197,078,762.24
  5. Step 5: Solve for x
    x = 151,197,078,762.24/354,401.60
  6. Step 6: Final answer
    x = 426,626.40

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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.