Home / 740,007.72-1,021,210.68-400,476

Finding the Fourth Proportional to 740,007.72, 1,021,210.68 and 400,476

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Solution

The fourth proportional to 740,007.72, 1,021,210.68 and 400,476 is: 552,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,007.72 : 1,021,210.68 = 400,476 : x
  2. Step 2: Convert to fraction form
    740,007.72/1,021,210.68 = 400,476/x
  3. Step 3: Cross multiply
    740,007.72x = 1,021,210.68 × 400,476
  4. Step 4: Simplify right side
    740,007.72x = 408,970,368,283.68
  5. Step 5: Solve for x
    x = 408,970,368,283.68/740,007.72
  6. Step 6: Final answer
    x = 552,656.89

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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.