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Finding the Fourth Proportional to 572,045.94, 858,119.34 and 212,220.96

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Solution

The fourth proportional to 572,045.94, 858,119.34 and 212,220.96 is: 318,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,045.94 : 858,119.34 = 212,220.96 : x
  2. Step 2: Convert to fraction form
    572,045.94/858,119.34 = 212,220.96/x
  3. Step 3: Cross multiply
    572,045.94x = 858,119.34 × 212,220.96
  4. Step 4: Simplify right side
    572,045.94x = 182,110,909,598.81
  5. Step 5: Solve for x
    x = 182,110,909,598.81/572,045.94
  6. Step 6: Final answer
    x = 318,350.15

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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.