Home / 661,756.14-913,385.70-375,443.82

Finding the Fourth Proportional to 661,756.14, 913,385.70 and 375,443.82

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Solution

The fourth proportional to 661,756.14, 913,385.70 and 375,443.82 is: 518,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,756.14 : 913,385.70 = 375,443.82 : x
  2. Step 2: Convert to fraction form
    661,756.14/913,385.70 = 375,443.82/x
  3. Step 3: Cross multiply
    661,756.14x = 913,385.70 × 375,443.82
  4. Step 4: Simplify right side
    661,756.14x = 342,925,016,341.37
  5. Step 5: Solve for x
    x = 342,925,016,341.37/661,756.14
  6. Step 6: Final answer
    x = 518,204.51

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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.