Home / 688,731.60-1,031,379.23-435,247.37

Finding the Fourth Proportional to 688,731.60, 1,031,379.23 and 435,247.37

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Solution

The fourth proportional to 688,731.60, 1,031,379.23 and 435,247.37 is: 651,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,731.60 : 1,031,379.23 = 435,247.37 : x
  2. Step 2: Convert to fraction form
    688,731.60/1,031,379.23 = 435,247.37/x
  3. Step 3: Cross multiply
    688,731.60x = 1,031,379.23 × 435,247.37
  4. Step 4: Simplify right side
    688,731.60x = 448,905,092,173.23
  5. Step 5: Solve for x
    x = 448,905,092,173.23/688,731.60
  6. Step 6: Final answer
    x = 651,785.24

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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.