Home / 744,398.29-1,116,708.14-345,079.45

Finding the Fourth Proportional to 744,398.29, 1,116,708.14 and 345,079.45

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Solution

The fourth proportional to 744,398.29, 1,116,708.14 and 345,079.45 is: 517,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,398.29 : 1,116,708.14 = 345,079.45 : x
  2. Step 2: Convert to fraction form
    744,398.29/1,116,708.14 = 345,079.45/x
  3. Step 3: Cross multiply
    744,398.29x = 1,116,708.14 × 345,079.45
  4. Step 4: Simplify right side
    744,398.29x = 385,353,030,761.72
  5. Step 5: Solve for x
    x = 385,353,030,761.72/744,398.29
  6. Step 6: Final answer
    x = 517,670.49

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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.