Home / 513,785.49-770,681.40-134,702.81

Finding the Fourth Proportional to 513,785.49, 770,681.40 and 134,702.81

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Solution

The fourth proportional to 513,785.49, 770,681.40 and 134,702.81 is: 202,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,785.49 : 770,681.40 = 134,702.81 : x
  2. Step 2: Convert to fraction form
    513,785.49/770,681.40 = 134,702.81/x
  3. Step 3: Cross multiply
    513,785.49x = 770,681.40 × 134,702.81
  4. Step 4: Simplify right side
    513,785.49x = 103,812,950,194.73
  5. Step 5: Solve for x
    x = 103,812,950,194.73/513,785.49
  6. Step 6: Final answer
    x = 202,055.04

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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.