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Finding the Fourth Proportional to 570,291.84, 855,048.96 and 289,267.20

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Solution

The fourth proportional to 570,291.84, 855,048.96 and 289,267.20 is: 433,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,291.84 : 855,048.96 = 289,267.20 : x
  2. Step 2: Convert to fraction form
    570,291.84/855,048.96 = 289,267.20/x
  3. Step 3: Cross multiply
    570,291.84x = 855,048.96 × 289,267.20
  4. Step 4: Simplify right side
    570,291.84x = 247,337,618,522.11
  5. Step 5: Solve for x
    x = 247,337,618,522.11/570,291.84
  6. Step 6: Final answer
    x = 433,703.59

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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.