Home / 986,885.52-1,480,030.31-513,312.54

Finding the Fourth Proportional to 986,885.52, 1,480,030.31 and 513,312.54

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Solution

The fourth proportional to 986,885.52, 1,480,030.31 and 513,312.54 is: 769,813.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,885.52 : 1,480,030.31 = 513,312.54 : x
  2. Step 2: Convert to fraction form
    986,885.52/1,480,030.31 = 513,312.54/x
  3. Step 3: Cross multiply
    986,885.52x = 1,480,030.31 × 513,312.54
  4. Step 4: Simplify right side
    986,885.52x = 759,718,115,136.53
  5. Step 5: Solve for x
    x = 759,718,115,136.53/986,885.52
  6. Step 6: Final answer
    x = 769,813.82

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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.