Home / 513,960.26-709,253.90-281,386.71

Finding the Fourth Proportional to 513,960.26, 709,253.90 and 281,386.71

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Solution

The fourth proportional to 513,960.26, 709,253.90 and 281,386.71 is: 388,307.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,960.26 : 709,253.90 = 281,386.71 : x
  2. Step 2: Convert to fraction form
    513,960.26/709,253.90 = 281,386.71/x
  3. Step 3: Cross multiply
    513,960.26x = 709,253.90 × 281,386.71
  4. Step 4: Simplify right side
    513,960.26x = 199,574,620,332.54
  5. Step 5: Solve for x
    x = 199,574,620,332.54/513,960.26
  6. Step 6: Final answer
    x = 388,307.49

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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.