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Finding the Fourth Proportional to 575,285.70, 862,280.55 and 275,909.70

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Solution

The fourth proportional to 575,285.70, 862,280.55 and 275,909.70 is: 413,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,285.70 : 862,280.55 = 275,909.70 : x
  2. Step 2: Convert to fraction form
    575,285.70/862,280.55 = 275,909.70/x
  3. Step 3: Cross multiply
    575,285.70x = 862,280.55 × 275,909.70
  4. Step 4: Simplify right side
    575,285.70x = 237,911,567,866.34
  5. Step 5: Solve for x
    x = 237,911,567,866.34/575,285.70
  6. Step 6: Final answer
    x = 413,553.77

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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.