Home / 572,428.96-789,677.52-402,756.64

Finding the Fourth Proportional to 572,428.96, 789,677.52 and 402,756.64

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Solution

The fourth proportional to 572,428.96, 789,677.52 and 402,756.64 is: 555,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,428.96 : 789,677.52 = 402,756.64 : x
  2. Step 2: Convert to fraction form
    572,428.96/789,677.52 = 402,756.64/x
  3. Step 3: Cross multiply
    572,428.96x = 789,677.52 × 402,756.64
  4. Step 4: Simplify right side
    572,428.96x = 318,047,864,638.73
  5. Step 5: Solve for x
    x = 318,047,864,638.73/572,428.96
  6. Step 6: Final answer
    x = 555,611.07

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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.