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Finding the Fourth Proportional to 501,802.40, 692,536.48 and 286,974.16

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Solution

The fourth proportional to 501,802.40, 692,536.48 and 286,974.16 is: 396,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,802.40 : 692,536.48 = 286,974.16 : x
  2. Step 2: Convert to fraction form
    501,802.40/692,536.48 = 286,974.16/x
  3. Step 3: Cross multiply
    501,802.40x = 692,536.48 × 286,974.16
  4. Step 4: Simplify right side
    501,802.40x = 198,740,074,617.36
  5. Step 5: Solve for x
    x = 198,740,074,617.36/501,802.40
  6. Step 6: Final answer
    x = 396,052.46

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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.