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Finding the Fourth Proportional to 560,038.87, 840,328.62 and 275,575.15

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Solution

The fourth proportional to 560,038.87, 840,328.62 and 275,575.15 is: 413,495.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,038.87 : 840,328.62 = 275,575.15 : x
  2. Step 2: Convert to fraction form
    560,038.87/840,328.62 = 275,575.15/x
  3. Step 3: Cross multiply
    560,038.87x = 840,328.62 × 275,575.15
  4. Step 4: Simplify right side
    560,038.87x = 231,573,685,505.79
  5. Step 5: Solve for x
    x = 231,573,685,505.79/560,038.87
  6. Step 6: Final answer
    x = 413,495.74

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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.