Home / 674,750.10-931,001.67-402,906.06

Finding the Fourth Proportional to 674,750.10, 931,001.67 and 402,906.06

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Solution

The fourth proportional to 674,750.10, 931,001.67 and 402,906.06 is: 555,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,750.10 : 931,001.67 = 402,906.06 : x
  2. Step 2: Convert to fraction form
    674,750.10/931,001.67 = 402,906.06/x
  3. Step 3: Cross multiply
    674,750.10x = 931,001.67 × 402,906.06
  4. Step 4: Simplify right side
    674,750.10x = 375,106,214,713.12
  5. Step 5: Solve for x
    x = 375,106,214,713.12/674,750.10
  6. Step 6: Final answer
    x = 555,918.72

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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.