Home / 916,362.90-1,375,200.45-384,265.80

Finding the Fourth Proportional to 916,362.90, 1,375,200.45 and 384,265.80

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Solution

The fourth proportional to 916,362.90, 1,375,200.45 and 384,265.80 is: 576,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,362.90 : 1,375,200.45 = 384,265.80 : x
  2. Step 2: Convert to fraction form
    916,362.90/1,375,200.45 = 384,265.80/x
  3. Step 3: Cross multiply
    916,362.90x = 1,375,200.45 × 384,265.80
  4. Step 4: Simplify right side
    916,362.90x = 528,442,501,079.61
  5. Step 5: Solve for x
    x = 528,442,501,079.61/916,362.90
  6. Step 6: Final answer
    x = 576,673.83

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1.5x scale

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.