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Finding the Fourth Proportional to 572,756.70, 858,875.85 and 257,051.10

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Solution

The fourth proportional to 572,756.70, 858,875.85 and 257,051.10 is: 385,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,756.70 : 858,875.85 = 257,051.10 : x
  2. Step 2: Convert to fraction form
    572,756.70/858,875.85 = 257,051.10/x
  3. Step 3: Cross multiply
    572,756.70x = 858,875.85 × 257,051.10
  4. Step 4: Simplify right side
    572,756.70x = 220,774,982,005.94
  5. Step 5: Solve for x
    x = 220,774,982,005.94/572,756.70
  6. Step 6: Final answer
    x = 385,460.32

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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.