Home / 739,996.96-1,021,195.80-400,465.28

Finding the Fourth Proportional to 739,996.96, 1,021,195.80 and 400,465.28

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Solution

The fourth proportional to 739,996.96, 1,021,195.80 and 400,465.28 is: 552,642.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,996.96 : 1,021,195.80 = 400,465.28 : x
  2. Step 2: Convert to fraction form
    739,996.96/1,021,195.80 = 400,465.28/x
  3. Step 3: Cross multiply
    739,996.96x = 1,021,195.80 × 400,465.28
  4. Step 4: Simplify right side
    739,996.96x = 408,953,461,981.82
  5. Step 5: Solve for x
    x = 408,953,461,981.82/739,996.96
  6. Step 6: Final answer
    x = 552,642.08

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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.