Home / 910,823.80-1,363,611.30-816,345.40

Finding the Fourth Proportional to 910,823.80, 1,363,611.30 and 816,345.40

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Solution

The fourth proportional to 910,823.80, 1,363,611.30 and 816,345.40 is: 1,222,165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,823.80 : 1,363,611.30 = 816,345.40 : x
  2. Step 2: Convert to fraction form
    910,823.80/1,363,611.30 = 816,345.40/x
  3. Step 3: Cross multiply
    910,823.80x = 1,363,611.30 × 816,345.40
  4. Step 4: Simplify right side
    910,823.80x = 1,113,177,812,143.02
  5. Step 5: Solve for x
    x = 1,113,177,812,143.02/910,823.80
  6. Step 6: Final answer
    x = 1,222,165.93

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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.