Home / 916,985.36-1,375,035.62-384,363.38

Finding the Fourth Proportional to 916,985.36, 1,375,035.62 and 384,363.38

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Solution

The fourth proportional to 916,985.36, 1,375,035.62 and 384,363.38 is: 576,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,985.36 : 1,375,035.62 = 384,363.38 : x
  2. Step 2: Convert to fraction form
    916,985.36/1,375,035.62 = 384,363.38/x
  3. Step 3: Cross multiply
    916,985.36x = 1,375,035.62 × 384,363.38
  4. Step 4: Simplify right side
    916,985.36x = 528,513,340,039.37
  5. Step 5: Solve for x
    x = 528,513,340,039.37/916,985.36
  6. Step 6: Final answer
    x = 576,359.63

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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.