Home / 630,918.04-870,716.58-358,997.38

Finding the Fourth Proportional to 630,918.04, 870,716.58 and 358,997.38

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Solution

The fourth proportional to 630,918.04, 870,716.58 and 358,997.38 is: 495,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,918.04 : 870,716.58 = 358,997.38 : x
  2. Step 2: Convert to fraction form
    630,918.04/870,716.58 = 358,997.38/x
  3. Step 3: Cross multiply
    630,918.04x = 870,716.58 × 358,997.38
  4. Step 4: Simplify right side
    630,918.04x = 312,584,970,942.56
  5. Step 5: Solve for x
    x = 312,584,970,942.56/630,918.04
  6. Step 6: Final answer
    x = 495,444.66

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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.