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Finding the Fourth Proportional to 1,569,505.70, 2,356,008.15 and 860,917.70

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Solution

The fourth proportional to 1,569,505.70, 2,356,008.15 and 860,917.70 is: 1,292,336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,505.70 : 2,356,008.15 = 860,917.70 : x
  2. Step 2: Convert to fraction form
    1,569,505.70/2,356,008.15 = 860,917.70/x
  3. Step 3: Cross multiply
    1,569,505.70x = 2,356,008.15 × 860,917.70
  4. Step 4: Simplify right side
    1,569,505.70x = 2,028,329,117,679.26
  5. Step 5: Solve for x
    x = 2,028,329,117,679.26/1,569,505.70
  6. Step 6: Final answer
    x = 1,292,336.25

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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.