Home / 630,320.05-869,914.25-350,945.38

Finding the Fourth Proportional to 630,320.05, 869,914.25 and 350,945.38

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Solution

The fourth proportional to 630,320.05, 869,914.25 and 350,945.38 is: 484,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,320.05 : 869,914.25 = 350,945.38 : x
  2. Step 2: Convert to fraction form
    630,320.05/869,914.25 = 350,945.38/x
  3. Step 3: Cross multiply
    630,320.05x = 869,914.25 × 350,945.38
  4. Step 4: Simplify right side
    630,320.05x = 305,292,387,033.67
  5. Step 5: Solve for x
    x = 305,292,387,033.67/630,320.05
  6. Step 6: Final answer
    x = 484,345.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.