Home / 1,259,491.60-1,738,116.48-686,531.76

Finding the Fourth Proportional to 1,259,491.60, 1,738,116.48 and 686,531.76

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Solution

The fourth proportional to 1,259,491.60, 1,738,116.48 and 686,531.76 is: 947,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,491.60 : 1,738,116.48 = 686,531.76 : x
  2. Step 2: Convert to fraction form
    1,259,491.60/1,738,116.48 = 686,531.76/x
  3. Step 3: Cross multiply
    1,259,491.60x = 1,738,116.48 × 686,531.76
  4. Step 4: Simplify right side
    1,259,491.60x = 1,193,272,166,099.40
  5. Step 5: Solve for x
    x = 1,193,272,166,099.40/1,259,491.60
  6. Step 6: Final answer
    x = 947,423.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.