Home / 916,421.30-1,373,465.55-816,110.90

Finding the Fourth Proportional to 916,421.30, 1,373,465.55 and 816,110.90

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Solution

The fourth proportional to 916,421.30, 1,373,465.55 and 816,110.90 is: 1,223,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,421.30 : 1,373,465.55 = 816,110.90 : x
  2. Step 2: Convert to fraction form
    916,421.30/1,373,465.55 = 816,110.90/x
  3. Step 3: Cross multiply
    916,421.30x = 1,373,465.55 × 816,110.90
  4. Step 4: Simplify right side
    916,421.30x = 1,120,900,206,129.50
  5. Step 5: Solve for x
    x = 1,120,900,206,129.50/916,421.30
  6. Step 6: Final answer
    x = 1,223,127.62

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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.