Home / 744,752.63-1,117,128.89-212,259.83

Finding the Fourth Proportional to 744,752.63, 1,117,128.89 and 212,259.83

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Solution

The fourth proportional to 744,752.63, 1,117,128.89 and 212,259.83 is: 318,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,752.63 : 1,117,128.89 = 212,259.83 : x
  2. Step 2: Convert to fraction form
    744,752.63/1,117,128.89 = 212,259.83/x
  3. Step 3: Cross multiply
    744,752.63x = 1,117,128.89 × 212,259.83
  4. Step 4: Simplify right side
    744,752.63x = 237,121,583,224.49
  5. Step 5: Solve for x
    x = 237,121,583,224.49/744,752.63
  6. Step 6: Final answer
    x = 318,389.72

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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.