Home / 707,039.17-975,736.01-401,128.43

Finding the Fourth Proportional to 707,039.17, 975,736.01 and 401,128.43

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Solution

The fourth proportional to 707,039.17, 975,736.01 and 401,128.43 is: 553,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,039.17 : 975,736.01 = 401,128.43 : x
  2. Step 2: Convert to fraction form
    707,039.17/975,736.01 = 401,128.43/x
  3. Step 3: Cross multiply
    707,039.17x = 975,736.01 × 401,128.43
  4. Step 4: Simplify right side
    707,039.17x = 391,395,453,785.76
  5. Step 5: Solve for x
    x = 391,395,453,785.76/707,039.17
  6. Step 6: Final answer
    x = 553,569.69

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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.