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Finding the Fourth Proportional to 558,681.12, 770,980.64 and 304,032.16

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Solution

The fourth proportional to 558,681.12, 770,980.64 and 304,032.16 is: 419,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,681.12 : 770,980.64 = 304,032.16 : x
  2. Step 2: Convert to fraction form
    558,681.12/770,980.64 = 304,032.16/x
  3. Step 3: Cross multiply
    558,681.12x = 770,980.64 × 304,032.16
  4. Step 4: Simplify right side
    558,681.12x = 234,402,909,297.38
  5. Step 5: Solve for x
    x = 234,402,909,297.38/558,681.12
  6. Step 6: Final answer
    x = 419,564.76

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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.